📖🗣️ Notable Events

Notable Events for April 6th:

[source: National Day Calendar - April 6 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, & Wikipedia]

Today is Day 96 of 2025
75 days until summer begins

1712 - The New York Slave Revolt of 1712 begins.
1808 - John Jacob Astor incorporates the American Fur Company.
1830 - Joseph Smith and 5 others officially organize the 'Church of Jesus Christ of Latter Day Saints.'
1868 - Brigham Young, the Mormon Church leader, marries his 27th and last wife.
1869 - Snow-melting apparatus is patented.
1886 - Vancouver, British Columbia, is incorporated.
1889 - George Eastman begins selling his Kodak flexible rolled film for the first time.
[A revolutionary step that made photography more accessible to the public.]
1896 - The first modern Olympic Games open in Athens, Greece.
1909 - Admiral Robert Peary and his African-American assistant Matthew Henson reach what was believed to be the North Pole.
1917 - The United States enters World War I.
[The U.S. declares war on Germany and enters World War I.]
1924 - The first successful round-the-world flight begins.
1926 - Varney Airlines [later United Airlines] makes its first commercial flight.
1930 - James Dewar invents Hostess Twinkies.
[Bakery manager, Jimmy Dewar, invented a cream filled sponge cake, now known as the Twinkie.]
1938 - Roy Plunkett [Dupont] invents Teflon.
1941 - Germany invades Yugoslavia and Greece.
1947 - The first Tony Awards are held, and were presented at a dinner in the Grand Ballroom at the Waldorf Astoria hotel on Easter Sunday.
1956 - Paramount Pictures signs Elvis Presley to a three-movie contract just five days after his first screen test.
1965 - Intelsat-1 [nicknamed Early Bird], the world’s first commercial geosynchronous communications satellite, is launched from Cape Kennedy [now Cape Canaveral, in Florida.
1992 - Microsoft announces Windows 3.1.
[Microsoft releases Windows 3.1]
1994 - The Rwandan genocide begins.
2004 - UConn’s women’s basketball team complete a championship sweep for the school by beating Tennessee 70-61 for the NCAA women’s title. The victory followed UConn’s win over Georgia Tech in the men’s championship game the previous night, making Connecticut the first Division I school to sweep both titles.
2009 - A magnitude-6.3 earthquake strikes central Italy.

Technological Events:

1965: The first commercial communications satellite is launched.

Other Observances:

National Siamese Cat Day
National New Beer's Eve
Drowsy Driver Awareness Day
National Sorry Charlie Day
Fresh Tomato Day
California Poppy Day  [aka Golden Poppy]
Jump Over Things Day
National Açaí Bowl Day
National Food Faces Day
National Carbonara Day
National Library Day
Celebrate National Pajama Day
National Twinkie Day
National Caramel Popcorn Day
Plan Your Epitaph Day  [Is celebrated on April 6, or November 2nd, every year.]
Good Deeds Day  [Takes place annually on a chosen Sunday in April. This year it's on April 6th.]
Geologists Day
Chakri Day  [Thailand]
Army Day
National Tartan Day
Evolution of Dance Day
National Teflon Day
National Student-Athlete Day
National Employee Benefits Day  [Changes Annually]
  
Births:

1483 [or March 28th]: Raphael, Italian painter and architect of the High Renaissance. [Died: April 6, 1520]
1857: Arthur Wesley Dow, Painter, American painter, printmaker, photographer and an arts educator. [Died: December 13, 1922]
1886: Walter Dandy, American neurosurgeon and scientist. [Died: April 19, 1946]
[One of the founding fathers of neurosurgery.]
1892: Donald Wills Douglas, Sr., American aircraft industrialist and engineer. [Died: February 1, 1981]
[Founder of the Douglas Aircraft Company.]
1894: Gertrude Baines, was the oldest person in the world at the time and the last person known to be born in 1894. [Died: September 11, 2009]
[Gertrude was 115 years old when she died, in 2009.]
1895: Dudley Nichols, American screenwriter and film director. [Died: January 4, 1960]
[The first person first decline an Academy Award to show his support for the Screen Writers Guild union.]
1900: Leo Robin, American composer, lyricist and songwriter. [Died: December 29, 1984]
[He is probably best known for collaborating with Ralph Rainger on the 1938 Oscar-winning song 'Thanks for the Memory,' sung by Bob Hope and Shirley Ross in the film 'The Big Broadcast of 1938,' and with Jule Styne on 'Diamonds Are a Girl's Best Friend.']
1903: Mickey Cochrane, American professional baseball player, manager and coach. [Died: June 28, 1962]
[MLB player and manager known as 'Black Mike.']
1903: Harold Edgerton, American scientist, researcher, and professor [of electrical engineering at the Massachusetts Institute of Technology.]  [Died: January 4, 1990]
[Engineer who is credited with the development of high-speed photography techniques. Known as 'Papa Flash.']
1906: Virginia Hall, [code named Marie and Diane], American who worked with the United Kingdom's clandestine Special Operations Executive (SOE) and the American Office of Strategic Services (OSS) in France during World War II. [Died: July 8, 1982]
[U.S. spy during WWII.]
1916: Vincent Ellis McKelvey, American geologist and earth scientist. [Died: January 23, 1987]
[Geologist who became an world-side authority on deep-sea mineral deposits.]
1920: Jack Cover, American aerospace scientist who was the inventor of the taser stun gun. [Died: February 7, 2009]
1927: Gerry Mulligan, American jazz saxophonist, clarinetist, composer and arranger. [Died: January 20, 1996]
[Known as 'Jeru.']
1928: James Watson, American molecular biologist, geneticist, and zoologist.
[A Geneticist who co-authored an academic paper proposing the double helix structure of the DNA molecule.]
1929: André Previn, German-American pianist, composer, and conductor. [Died: February 28, 2019]
[Oscar and Grammy-winning composer, conductor, and jazz pianist.]
1937: Merle Haggard, American country music singer, songwriter, guitarist, and fiddler. [Died: April 6, 2016]
[Considered one of the greatest all-around musicians in country music.]
1937: Billy Dee Williams, American actor, novelist and painter.
[Multi-award winning actor who appeared on over 100 films, including the Star Wars franchise and 'Lady Sings the Blues.']
1947: John Ratzenberger, American actor.
[Recognized for his role as Cliff in 'Cheers.]
1952: Marilu Henner, American actress and author.
1969: Bret Boone, American former Major League Baseball second baseman.
1969: Paul Rudd, American actor.
[Credits in 'Clueless' and 'The 40-Year-Old Virgin.']
1971: Lou Merloni, American sportscaster, and former Major League Baseball player.
[Nicknamed 'Sweet Lou.']
1975: Zach Braff, American actor and filmmaker.
1998: Peyton List, American actress.
2012: Twin mongoose lemurs [born at Busch Gardens, Tampa, Florida].

Deaths:

1199: King Richard I, English monarch. [Born: September 8, 1157]
[Called 'Richard the Lionheart.]
1520: Raphael, Italian Renaissance painter. [Born: March 28 or April 6, 1483]
1970: Sam Sheppard, American osteopath. [Born: December 29, 1923]
[Subject of a controversial murder trial.]
1998: Tammy Wynette, American country music singer and songwriter. [Born: May 5, 1942]
[Considered among the genre's most influential and successful artists.]
2004: Niki Sullivan, American rock and roll guitarist, born in South Gate, California. [Born: June 23, 1937]
[Guitarist for 'Buddy Holly and the Crickets.']
2005: Prince Rainier III of Monaco, Prince of Monaco. [Born: May 13, 1923]
2010: Corin Redgrave, English actor. [Born: July 16, 1939]
2012: Thomas Kinkade, American painter of popular realistic, pastoral, and idyllic subjects. [Born: January 19, 1958]
[Often referred to as 'Painter of Light']
2014: Mickey Rooney, American actor. [Born: September 23, 1920]
[In a career spanning nearly nine decades, he appeared in more than 300 films and was among the last surviving stars of the silent-film era.]
2015: James Best, American television, film, stage, and voice actor, as well as a writer, director, acting coach, artist, college professor, and musician. [Born: July 26, 1926]
[Best known as Rosco P. Coltrane on 'The Dukes of Hazzard.']
2016: Merle Haggard, American country music singer, songwriter, guitarist, and fiddler. [Born: April 6, 1937]
[As mentioned above, he shares his birth and death date.]

2023: Ingvar Hirdwall, Swedish actor. [Born: December 5, 1934]

Notable Events for April 7th:

[source: National Day Calendar - April 7 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, & Wikipedia]

1348 - Charles University is founded in Prague, becoming the first university in Central Europe.
1521 - Portuguese explorer Ferdinand Magellan's fleet reached Cebu in the Philippines.
1712 - In New York City, 27 enslaved Black people rebel, resulting in multiple deaths and subsequent executions and suicides of the rebels.
1724 - Johann Sebastian Bach's St. John Passion premieres in Leipzig, Germany.
1776 - Captain John Barry and the USS Lexington capture the British ship Edward.
1788 - Marietta, Ohio, was established as the first permanent American settlement in the Northwest Territory.
[Marietta becomes the first first settlement in Ohio.]
1798 - The Mississippi Territory is organized in the United States.
1805 - The Lewis and Clark Expedition breaks camp among the Mandan tribe in North Dakota along the Missouri River.
[The Lewis and Clark expedition depart Fort Mandan in present-day North Dakota to continue their journey west.]
1827 - English chemist John Walker sells the first friction matches.
1862 - The Battle of Shiloh concludes in a Union victory in western Tennessee.
1902 - The Texaco oil company forms.
1906 - Mount Vesuvius erupts, devastating Naples, Italy.
1923 - Dr. Winfield Ney performs the first brain tumor operation under local anesthesia.
1927 - AT&T transmits the first long-distance public television broadcast.
1933 - National Beer Day (the Cullen-Harrison Act) takes effect, legalizing the sale of low alcohol beer.
[In the United States, the Cullen-Harrison Act takes effect, legalizing the sale of low-alcohol beer (3.2% by weight), marking a significant step towards the end of Prohibition.]
[This day is now celebrated as 'National Beer Day' in the U.S.]
1940 - Booker T. Washington becomes the first Black American to be depicted on a postage stamp.
[Booker T. Washington becomes the first African American to be pictured on a U.S. postage stamp.]
1943 - The NFL makes helmets mandatory and implements a 10-game schedule for all teams.
1945 - During World War II, the Japanese battleship Yamato, one of the largest battleships ever built, is sunk by U.S. Navy aircraft off Okinawa.
1948 - The World Health Organization is established by the United Nations.
[This Day is now 'World Health Day']
1949 - Rodgers and Hammerstein’s musical South Pacific opens on Broadway, New York City.
1951 - The American Bowling Congress hosts the first bowling masters tourney.
1954 - U.S. President Dwight D. Eisenhower articulated the 'domino theory' regarding the spread of communism in Southeast Asia.
1959 - After 51 years, Oklahoma finally ends Prohibition.
1959 - First distinguishable radar echo bounces off the Sun.
1963 - Jack Nicklaus wins Masters Golf Tournament.
1963 - A new Yugoslav constitution proclaims Josip Broz Tito president for life of the Socialist Federal Republic of Yugoslavia.
1964 - IBM announces the System/360 Mainframe computer.
1966 - The U.S. recovers a lost hydrogen bomb from the Mediterranean Sea.
1969 - The Internet is born.
[The internet's symbolic birth date: the Advanced Research Projects Agency (ARPA) awards a contract to BBN Technologies to build a precursor of the World Wide Web, and RFC 1 is published.]
1970 - John Wayne wins Best Actor Oscar for his role in 'True Grit.'
1970 - Paul McCartney officially announces his departure from The Beatles.
1971 - President Nixon announces his decision to quicken the pace of 'Vietnamization.'
1977 - The Toronto Blue Jays play their first American League baseball game.
1978 - U.S. President Jimmy Carter cancels the development of the neutron bomb.
1980 - The United States severs diplomatic relations with Iran during the Iran hostage crisis.
1987 - The National Museum of Female Physicians opens in Washington, D.C.
1990 - An arson attack on the passenger ferry Scandinavian Star kills 159 people.
1994 - The Rwandan Genocide begins.
2001 - NASA’s Mars Odyssey spacecraft is launched.
2003 - U.S. troops captures Baghdad, the capital of Iraq, marking a major turning point in the Iraq War.
2009 - After an undefeated season, UConn’s women’s basketball team win the NCAA championship.
2009 - A 4.9-magnitude aftershock registers in central Italy following the previous day’s 6.3-magnitude earthquake.
2017 - Joan Baez, Journey, Pearl Jam, 2Pac Shakur, and Yes are inducted into the Rock and Roll Hall of Fame.
2017 - Smurfs: The Lost Village movie is released.
2017 - A stolen truck rams into pedestrians in Stockholm, Sweden, killing four people.

Other Observances:

Community Garden Week is celebrated on the first full week of April each year and this year it will be marked from April 7 to 13.

World Health Day
Make The First Move Day
Metric System Day

Public Television Day

International Beaver Day

National Girl Me Too Day

Motherhood and Beauty Day  [Armenia]

Born:

1770: William Wordsworth, English Romantic poet. [Died: April 23, 1850]
1775: Francis Cabot Lowell, American businessman for whom the city of Lowell, Massachusetts, is named. [Died: August 10, 1817]
[He was instrumental in bringing the Industrial Revolution to the United States. Founder of the first raw cotton-to-cloth textile mill.]
1859: Walter Camp, American college football player and coach, and sports writer. [Died: March 14, 1925]
[Known as the 'Father of American Football.' Creator of the Line of Scrimmage and the system of Downs.]
1860: Will Keith Kellogg, American industrialist in food manufacturing, who founded the Kellogg Company, which produces a wide variety of popular breakfast cereals. [Died: October 6, 1951]
1890: Marjory Stoneman Douglas, American journalist, author, women's suffrage advocate, and conservationist known for her staunch defense of the Everglades against efforts to drain it and reclaim land for development. [Died: May 14, 1998]
1893: Irene Castle, Dancer. [Died: January 25, 1969]
[Irene and husband, Vernon, were a husband-and-wife team of ballroom dancers, and dance teachers, who appeared on Broadway and in silent films, in the early 20th century.]
1895: John Bernard Flannagan, American sculptor. [Died: January 6, 1942]
[WWI veteran who became a prominent sculptor and is considered one of the first artists to use direct carving to create sculptures.]
1897: Walter Winchell, syndicated American newspaper gossip columnist and radio news commentator. [Died: February 20, 1972]
1915: Billie Holiday, American jazz and swing music singer. [Died: July 17, 1959]
[Nicknamed 'Lady Day' by her friend and music partner, Lester Young. Holiday made significant contributions to jazz music and pop singing. Her vocal style, strongly influenced by jazz instrumentalists, inspired a new way of manipulating phrasing and tempo. She was known for her vocal delivery and improvisational skills. Jazz and swing-singer remembered for her vocal talent in Lady Sings the Blues and God Bless the Child.]
1918: Robert Pershing 'Bobby' Doerr, American professional baseball second baseman and coach. [Died: November 13, 2017]
1928: James Garner, American actor. [Died: July 19, 2014]
[Actor whose credits include, Cash McCall [1960], Support Your Local Sheriff! [1969], Jim Rockford in The Rockford Files [1974 - 1980], and Murphy's Romance [1985], to name a few.]
1933: Wayne Rogers, Actor fondly remembered for his comedic role as Trapper in M.A.S.H. [Died: December 31, 2015]
1935: Yvonne Fedderson, American philanthropist and retired actress. [Died: April 7, 1935]
[Co-founder of the organization Childhelp USA.]
1938: Spencer Dryden, Rock and Roll Hall of Fame drummer [1996] who is remembered as the drummer for Jefferson Airplane. [Died: January 11, 2005]
1939: Francis Ford Coppola, American filmmaker.
[Multi-award winning director, producer, and screenwriter for movie hits like The Godfather I, II and III (1972-90), American Graffiti (1973), The Outsiders (1983), and Megalopolis (2024). He is considered one of the leading figures of the New Hollywood and one of the greatest directors of all time.]
1946: Robert Metcalfe, American engineer and entrepreneur who contributed to the development of the internet in the 1970s.
[Engineer who was the co-inventor of Ethernet.]
1946: Stan Winston, American television and film special make-up effects artist. [Died: June 15, 2008]
[Best known for his work in the Terminator series, the first three Jurassic Park films, Aliens, The Thing, the first two Predator films, Inspector Gadget, Iron Man, and Edward Scissorhands. He won four Academy Awards for his work.]
1948: John Oates, American musician.
]The other half of the rock duo 'Hall and Oates.']
1953: Santa Barraza, American mixed-media artist and painter.
[World renowned mixed media artist.]
1954: Tony Dorsett, American former professional football running back.
[NFL Teams: Dallas Cowboys and Denver Broncos.]
1954: Jackie Chan, Hong Kong actor, filmmaker, martial artist, and stuntman.
1964: Russell Crowe, New Zealand actor and film director.
1975: Tiki Barber, American former professional football running back.
[He had a 10-year career span with the NFL New York Giants.]

Died:

1891: Phineas Taylor/P.T. Barnum, American showman, businessman, and politician. [Born: July 5, 1810]
[Remembered for promoting celebrated hoaxes and founding, with James Anthony Bailey, the Ringling Bros. and Barnum & Bailey Circus. He was also an author, publisher, and philanthropist.]
2009: Dave Arneson, American game designer best known for co-developing the first published role-playing game (RPG), Dungeons & Dragons, with Gary Gygax, in the early 1970s. [Born: October 1, 1947]
2010: George Nissen, American gymnast and inventor who developed the modern trampoline and made trampolining a worldwide sport and recreation. [Born: February 3, 1914]
2012: Mike Wallace, American journalist, game show host, actor, and media personality. [Born: May 9, 1918]
[Known for his investigative journalism, he interviewed a wide range of prominent newsmakers during his seven-decade career. He was one of the original correspondents featured on CBS news program 60 Minutes, which debuted in 1968. Wallace retired as a regular full-time correspondent in 2006, but still appeared occasionally on the series until 2008. He is the father of Chris Wallace.]

Notable Events for April 8th:

[source: National Day Calendar - April 8 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, Ben & Jerry's, & Wikipedia]

217 - Roman Emperor Caracalla is assassinated and succeeded by Marcus Opellius Macrinus.
876 - The Battle of Dayr al-'Aqul saves Baghdad from the Saffarids.  
1139 - Roger II of Sicily is excommunicated by Pope Innocent II.
1232 - The Mongols begins their siege of Kaifeng, the capital of the Jin dynasty.
1250 - During the Seventh Crusade, Ayyubids of Egypt captures King Louis IX of France.
1271 - In Syria, Sultan Baibars conquers Krak des Chevaliers.
1605 - The city of Oulu, Finland, is founded by Charles IX of Sweden.
1730 - Shearith Israel dedicates its first synagogue in continental North America.
1751 - William Pigott opens first inn in Nova Scotia (in Halifax).
1812 - Czar Alexander I of Russia announces the transfer of the Finnish capital from Turku to Helsinki.
1820 - The Venus de Milo is discovered on the Aegean island of Milos.
1838 - The steamship Great Western begins her voyage from Bristol, England, to New York, marking a significant step in transatlantic travel.
1838 - The steamship the Great Western begins her voyage from Bristol, England, to New York.
1864 - Gallaudet University is founded in Washington, D.C.
1866 - Italy and Prussia signs a secret alliance against the Austrian Empire.
1869 - The American Museum of Natural History opens in New York City.
1886 - William Ewart Gladstone introduces the first Irish Home Rule Bill into the British House of Commons.
1893 - The first recorded college basketball game occurs at Geneva College in Beaver Falls, Pennsylvania.
1904 - France and the United Kingdom sign the Entente Cordiale, resolving colonial disputes and establishing a diplomatic understanding. Longacre Square in Manhattan is renamed Times Square after The New York Times.
1910 - The first race is held at the Playa Del Ray Motordrome in California.
1913 - The 17th Amendment to the U.S. Constitution is ratified, requiring the direct popular election of U.S. senators. The Internal Revenue Service began to levy and collect income taxes.
1926 - Second day of fire tornadoes in San Luis Obispo, California.
1927 - Honolulu Academy of Arts opens in Hawaii.
1935 - The Works Progress Administration (WPA) is established by the U.S. Congress as part of FDR's New Deal.
1940 - The Central Committee of the Mongolian People's Revolutionary Party elects Yumjaagiin Tsedenbal as General Secretary.
1943 - President Franklin D. Roosevelt orders a nationwide wage freeze in an effort to curb inflation.
1946 - The League of Nations assembles for the last time, Geneva.
1947 - A sunspot is enlarged to 330+ times Earth’s area.
1952 - U.S. President Harry S. Truman seized control of America's steel mills to prevent a nationwide strike.
1953 - Jomo Kenyatta, a leader of the Kenyan independence movement, is convicted by British rulers for leading the Mau Mau uprising.
1954 - A Royal Canadian Air Force plane collides with a Trans-Canada Airlines plane over Moose Jaw, Saskatchewan, killing 37 people.
1954 - South African Airways Flight 201 crashes into the sea, killing 21.
1959 - COBOL (Common Business-Oriented Language), one of the first modern programming languages, is created.
1960 - The U.S. Senate passes the Civil Rights Bill addresses discriminatory voting practices.
1965 - The first U.S. combat forces arrive in Vietnam, on the beaches of Da Nang.
1968 - BOAC Flight 712 catch fire shortly after takeoff; Barbara Jane Harrison is posthumously awarded the George Cross for her actions.
1970 - Israeli bombers strike an Egyptian primary school in Bahr El-Baqar, killing 46 children.
1970 - In Toronto, the CBC announces it bought Sesame Street to show on its television network.
1974 - Hank Aaron hits his 715th home run, breaking Babe Ruth's all-time record.
1975 - Frank Robinson makes his debut as the first Black manager in Major League Baseball, managing the Cleveland Indians.
1977 - The Clash release their debut album.
1983 - David Copperfield makes the Statue of Liberty 'disappear' in a televised magic trick.
1986 - Clint Eastwood is elected mayor of Carmel-by-the-Sea, California.
1990 - Ryan White, a teenager who became a national symbol for the fight against AIDS, dies at age 18.
1993 - The Space Shuttle Discovery is launched on mission STS-56.
1994 - Smoking is banned in the Pentagon, and all U.S. military bases.
2002 - The Space Shuttle Atlantis is launched on mission STS-110 to the International Space Station; Jerry L. Ross becomes the first person to fly on seven spaceflights.
2005 - Over four million people pay their last respects to Pope John Paul II, at his funeral.
2010 - U.S. President Barack Obama and Russian President Dmitry Medvedev sign the New START Treaty.
2013 - Margaret Thatcher, former Prime Minister of the United Kingdom, passes away.
2022 - The first all-private space flight (Axiom-1) launches to the International Space Station.

Other Observances:

Draw a Picture of a Bird Day
[A creative day to express yourself by drawing or painting a bird.]
Free Cone Day [Ben & Jerry's]

Zoo Lovers Day
[Another reminder to appreciate and support zoos and their conservation efforts.]

Pygmy Hippo Day

Baby Massage Day
International Feng Shui Awareness Day
[Learn about the principles of Feng Shui and how they can impact your living spaces.]

National Library Workers Day
National Empanada Day
National All is Ours Day
Dog Farting Awareness Day
[A lighthearted and humorous observation. It's a day to raise awareness about canine digestive health and share tips on dealing with dog flatulence, which can sometimes indicate underlying health issues.]

National Dog Fighting Awareness Day
[A crucial day to raise awareness about the cruelty of dog fighting and to learn how to recognize and report it.]

Step Into the Spotlight Day
[A day to overcome shyness and embrace opportunities to be seen and heard.]

Trading Cards for Grown-ups Day
[A nostalgic day to revisit the fun of collecting and trading cards.]

International Pageant Day
International Kids’ Yoga Day

International Roma Day [also International Romani Day] [Kosovo]
[A day to celebrate Romani culture, heritage, and traditions, and to raise awareness about the issues facing Romani people worldwide.]
National Be Kind to Lawyers Day

Born:

1732: David Rittenhouse, American astronomer, inventor, clockmaker, mathematician, surveyor, scientific instrument craftsman, and public official. [Died: June 26, 1796]

1726: Lewis Morris, Farmer who signed the Declaration of Independence. [Died: January 22, 1798]
[American Founding Father, landowner, and developer from Morrisania, New York, presently part of Bronx County. He signed the U.S. Declaration of Independence as a delegate to the Continental Congress from New York.]

1827: Ramón Emeterio Betances, Puerto Rican doctor and politician. [Died: September 16, 1898]
1842: Elizabeth Bacon Custer, Author and wife of General George Custer. [Died: April 4, 1933]

1850: William H. Welch, Founder of Johns Hopkins Hospital. [Died: April 30, 1934]

1859: Edmund Husserl, Austrian mathematician and philosopher. [Died: April 27, 1938]
1869: Harvey Cushing, American neurosurgeon, pathologist, writer, and draftsman. [Died: October 7, 1939]
[Surgeon and person who Cushings Disease is named after. A pioneer of brain surgery, he was the first exclusive neurosurgeon and the first person to describe Cushing's disease. He wrote a biography of physician William Osler in three volumes.]

1912: Sonja Henie, Norwegian-American champion figure skater and actress. [Died: October, 12 1969]

1918: Betty Ford, former First Lady of the United States. [Died: July 8, 2011]
[First Lady of the U.S. President Ford.]
1920: Carmen McRae, One of the most influential jazz vocalists of the 20th century. [Died: November 10, 1994]

1921: Franco Corelli, Italian tenor who had a major international opera career between 1951 and 1976. [Died: October 29, 2003]

1924: Sara Northrup Hollister, Second wife of Ron Hubbard and was influential in the creating Dianetics (later known as Scientology). [Died: December 19, 1997]
1926: Henry N. Cobb, Co-founder of the architectural firm Pei Cobb Freed & Partners. [Died: March 2, 2020]

1929: Jacques Brel, Belgian singer-songwriter and actor. [Died: October 9, 1978]
1933: James Lockhart, Scholar who studied colonial Latin America intensively to learn more and understand the culture. [Died: January 17, 2014]
1942: Douglas Trumbull, Special effects artist. [Died: February 7, 2022]
[Credited for his work in 'Close Encounters of the Third Kind' and 'Star Trek: The Motion Picture.']
1938: Kofi Annan, Ghanaian diplomat and former Secretary-General of the United Nations. [Died: August 18, 2018]

1946: 'Catfish' Hunter, American baseball player. [Died: September 9, 1999]
1960: John Schneider, Actor best known for his role as Bo Duke on the series 'The Dukes of Hazzard.'
1962: Izzy Stradlin, Guitarist who co-founded the rock band Guns N' Roses.
1963: Julian Lennon, English musician, photographer, author, and philanthropist.
1966: Robin Wright, American actress.
1968: Patricia Arquette, American actress.
1977: Mark Spencer, Computer programmer who authored the GTK+-based instant messaging client Gaim (later renamed to Pidgin).
1981: Taylor Kitsch, Canadian actor.
2002: Skai Jackson, American actress.
[She is best known for playing Zuri Ross in the Disney Channel sitcom Jessie [2011–2015], and its spin-off series Bunk'd [2015–2018]. Jackson appeared on Time's list of the 'Most Influential Teens' [2016], and was nominated for 'Best Influencer' at the Shorty Awards, in 2017.]
  
Died:

1857: Mangal Pandey, Indian freedom fighter. [Born: Unknown]
1947: Henry Ford, founder of the Ford Motor Company. [Born: July 30, 1863]
1950: Vaslav Nijinsky, Russian dancer and choreographer. [Born: March 12, 1889]
1973: Pablo Picasso, Spanish painter and sculptor. [Born: October 24, 1881]
1981: Omar Bradley, American general. [Born: 12 February 1893]
1990: Ryan White, American AIDS activist. [Born: December 6, 1971]
1993: Marian Anderson, American contralto singer. [Born: February 27, 1897]
[She performed a wide range of music, from opera to spirituals.]
2013: Margaret Thatcher, British stateswoman and Conservative politician who served as Prime Minister of the United Kingdom [1979 to 1990]. [Born: October 13, 1925]
2013: Annette Funicello, American actress and singer. [Born: October 22, 1942]
[One of the most popular Mouseketeers on the original Mickey Mouse Club.]

Notable Events for April 9th:

[source: National Day Calendar - April 9 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, Days of the Year, & Wikipedia]

1105 - Great Britain’s King Henry I is reprimanded in church for his long hair.
1682 - René-Robert Cavelier, Sieur de La Salle discovers the mouth of the Mississippi River and claims the territory for France, naming it Louisiana.
[Explorer La Salle claims the Mississippi basin for France, calling it Louisiana.]
1833 - The first tax-supported public library opens in Peterborough, New Hampshire.
[First tax-supported U.S. public library is founded, in Peterborough, New Hampshire.]
1860 - Édouard-Léon Scott de Martinville makes the first known recording of the human voice, singing the French folk song 'Au clair de la lune' on his phonautograph.
1865 - Confederate General Robert E. Lee surrenders the Army of Northern Virginia to Union General Ulysses S. Grant at Appomattox Court House, Virginia, effectively ending the American Civil War.
[Confederate general Robert E. Lee surrendered to Union general Ulysses S. Grant at Appomattox Court House, Virginia.]
1866 - Despite a veto by President Andrew Johnson, the Civil Rights Bill of 1866 is passed by Congress, granting African Americans the rights and privileges of U.S. citizenship.
1882 - Jumbo the circus elephant arrives in the U.S.
1905 - The Aerial Ferry Bridge opens in Duluth, Minnesota.
1909 - The Congress passes the Payne–Aldrich Tariff Act, raising tariffs on goods entering the U.S.
1912 - The Boston Red Sox played Harvard University in the first official baseball game at Fenway Park.
[The Boston Red Sox won, 2-0.]
1917 - The Battle of Arras begins during World War I, with Canadian forces launching a major assault on Vimy Ridge.
1917 - Battle of Vimy Ridge (WWI) begins in France.
1939 - African-American opera singer Marian Anderson performs a historic concert on the steps of the Lincoln Memorial in Washington, D.C., after being denied the use of Constitution Hall due to her race.
1939 - The Daughters of the American Revolution deny Marian Anderson entry to Constitutional Hall to perform a concert. She performs on the Lincoln Memorial instead.
1940 - Germany invades Denmark and Norway as part of Operation Weserübung during World War II.
1941 - The Golf Hall of Fame is established.
1942 - During World War II, the Battle of Bataan ends with the surrender of approximately 75,000 Filipino and American troops to the Japanese. This leads to the infamous Bataan Death March.
1945 - Lutheran pastor and theologian Dietrich Bonhoeffer, a prominent opponent of Nazism, is hanged in Flossenbürg concentration camp.
1945 - The U.S. Atomic Energy Commission is formed.
1948 - Fighters from the Irgun and Lehi Zionist groups attack the Palestinian village of Deir Yassin near Jerusalem, resulting in over 100 deaths.
1950 - Bob Hope makes his first television appearance.
1952 - The Bolivian National Revolution overthrows the government of Hugo Ballivián, leading to significant reforms including universal suffrage and the nationalization of tin mines.
1957 - The Suez Canal in Egypt is reopened to shipping following the Suez Crisis.
1959 - NASA introduces the 'Mercury Seven,' America's first seven astronauts: Scott Carpenter, Gordon Cooper, John Glenn, Gus Grissom, Wally Schirra, Alan Shepard, and Donald Slayton.
[NASA introduced first seven astronauts to press.]
1959 - The Boston Celtics became the first NBA team to sweep an NBA championship series.
1960 - Hendrik Verwoerd, the Prime Minister of South Africa and architect of apartheid, survives an assassination attempt.
1962 - Golfer Arnold Palmer wins his third Masters Tournament.
1963 - Sir Winston Churchill is proclaimed an honorary U.S. citizen.
1965 - The first baseball game is played in an indoor stadium, in Houston, Texas.
1967 - The first Boeing 737 aircraft makes its maiden flight. It goes on to become the best-selling commercial jetliner in history.
1970 - Paul McCartney officially announces the breakup of The Beatles.
1974 - San Diego Padres owner Ray Kroc famously addresses disgruntled fans, saying, 'Ladies and gentlemen, I suffer with you. I've never seen such stupid baseball playing in my life.'
1981 - Nature magazine publishes the longest known scientific name, which was about 207,000 letters.
[In 1981, Nature magazine published the systematic name for human mitochondrial DNA, which, with 16,569 nucleotides, was a whopping 207,000 letters long.]
1989 - In Tbilisi, Georgia, a peaceful demonstration against Soviet rule is violently dispersed by the Soviet army, resulting in multiple deaths.
1991 - Georgia declares its independence from the Soviet Union.
1992 - A U.S. Federal Court finds former Panamanian dictator Manuel Noriega guilty of drug trafficking and racketeering charges.  
2003 - Baghdad falls to American forces during the Iraq War.
2005 - Prince Charles marries Camilla Parker Bowles in a civil ceremony.
2011 - A mass shooting in a shopping mall in Alphen aan den Rijn, Netherlands, results in several deaths and injuries.
2012 - 'The Lion King becomes the highest-grossing Broadway show in history, surpassing 'The Phantom of the Opera.'
2014 - A rare Bactrian camel is born at the Budapest Zoo.

Other Observances:

National Mature Women’s Day
National Cherish an Antique Day
[Encourages people to appreciate and learn about their antique items.]
International ASMR Day
[Raises awareness about Autonomous Sensory Meridian Response, a tingling sensation some people experience in response to specific stimuli.]
National Gin and Tonic Day
[A day for enthusiasts to enjoy this classic cocktail.]
National Unicorn Day
[A day to celebrate the mythical and enchanting unicorn.]
International Day of Pink  [Second Wednesday in April]
[An anti-bullying awareness day.]
National Chicken Little Awareness Day
[A humorous day to remind people not to overreact to minor events.]
Jumbo Day
[Possibly related to the famous elephant 'Jumbo,' though its exact origin as a holiday is unclear.]
Name Yourself Day
[A fun day to perhaps try out a new name or appreciate the one you have.]
Appomattox Day
[Commemorates the surrender of Confederate General Robert E. Lee to Union General Ulysses S. Grant on April 9, 1865, effectively ending the American Civil War.]
Jenkins Ear Day
[A quirky historical observance related to an incident that contributed to the War of Jenkins' Ear between Britain and Spain.]
National Former Prisoner of War Recognition Day
[Honors the courageous men and women who have endured brutal treatment at the hands of their captors. As a result, they've also suffered separation from family and displayed incredible endurance and faith during their captivity.]
Chinese Almond Cookie Day
[A day to enjoy this tasty and lucky treat.]
Day of the Finnish Language [also known as 'Mikael Agricola Day.']
[Celebrates the Finnish language and the contributions of Mikael Agricola, who translated the New Testament into Finnish.]
Winston Churchill Day
[Commemorates the day in 1963 when Winston Churchill was made an honorary citizen of the United States.]
National Library Outreach Day  [Wednesday of 'National Library Week.']
[Highlights the valuable outreach work done by libraries.]
National Education and Sharing Day  [Changes Annually]
[An annual observance that focuses on the importance of education and sharing.]

Notable Events for April 10th:

[source: National Day Calendar - April 10 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, & Wikipedia]

1815 - Mount Tambora in Indonesia begins a massive three-month-long eruption, one of the largest volcanic eruptions in recorded history.
[This event led to a 'year without a summer' in 1816 due to the amount of ash released into the atmosphere and caused an estimated 71,000 deaths.]
1849 - Safety pin is patented by Walter Hunt.
1861 - Massachusetts Institute of Technology (MIT) is established by William Barton Rogers in Massachusetts.
1866 - The American Society for the Prevention of Cruelty to Animals (ASPCA) is founded in New York City by Henry Bergh, marking a significant step in animal welfare.
[The American Society for the Prevention of Cruelty to Animals was incorporated.]
1872 - First Arbor Day celebration is held in Nebraska.
1887 - On Easter Sunday, Pope Leo XIII authorizes the establishment of the Catholic University of America.  
1912 - The RMS Titanic sets sail from Southampton, England, on its maiden and only voyage. This ill-fated journey would end in tragedy on April 15th.  
1916 - The Professional Golfers' Association of America (PGA) is created in New York City, establishing a formal organization for professional golfers.
1919 - Mexican Revolution leader Emiliano Zapata is ambushed and shot dead by government forces in Morelos, a significant loss for the peasant movement.  
1925 - 'The Great Gatsby' by F. Scott Fitzgerald is first published in New York City, becoming a landmark of American literature.
1937 - Trans-Canada Air Lines is created by Parliament.
1939 - Alcoholics Anonymous' 'Big Book' is first published, laying the foundation for the self-help group focused on recovery from alcoholism.  
1941 - During World War II, the Axis powers establish the Independent State of Croatia.
1945 - U.S. troops liberate the Nazi concentration camp at Buchenwald near Weimar, Germany, revealing the horrors of the Holocaust.
1953 - Feature length, full color, 3-D movie premieres in NYC: House of Wax starring Vincent Price.
1959 - 'Gidget' premieres.
1970 - Paul McCartney announces that The Beatles have broken up, a pivotal moment in music history, signaling the official end of one of the most influential bands of all time.
1984 - A 5-pound white crappie is caught in the Bibb County pond in Georgia.
1988 - The comic strip 'FoxTrot' debuts.
1994 - Charles Osgood becomes host of 'CBS’s Sunday Morning.'
1998 - Politicians in Northern Ireland reach the Good Friday Agreement, a landmark agreement aimed at ending 30 years of violent conflict known as 'The Troubles.'
2010 - The President of Poland, Lech Kaczyński, dies in a plane crash in Smolensk, Russia, along with numerous other high-ranking Polish officials.
2016 - Danny Willett wins the Masters golf tournament.
2023 - A mass shooting occurs at the Old National Bank in Louisville, Kentucky, resulting in multiple fatalities and injuries.

Other Observances:

National Cherry Blossom Festival [Washington D.C.]
[Continues until April 13th, celebrating the blooming cherry blossoms.]

National Nana Day
National Siblings Day
[A day to celebrate the unique bond between brothers and sisters.]
National Erase Self-Negativity Day
[Encouraging people to identify and overcome negative self-talk.]

National Encourage a Young Writer Day
[Promoting the importance of writing among young people.]
National Farm Animals Day
[Raising awareness about the care and well-being of farm animals.]
ASPCA Day [American Society for the Prevention of Cruelty to Animals Day]
[Recognizing the work of the ASPCA in protecting animals.]

National Cinnamon Crescent Day
[A day to enjoy the sweet and flaky pastry.]
National Alcohol Screening Day
[Part of the first full week of April, this day promotes awareness about alcohol misuse and encourages people to seek help if needed.]
Global Work From Home Day
[Celebrating the flexibility and benefits of remote work.]
Golfer's Day
[A day for golf enthusiasts.]
The Masters Tournament
[The prestigious golf tournament in Augusta, Georgia, takes place from April 10th to 13th.]

International Safety Pin Day
[Recognizing the invention and usefulness of the safety pin.]

National Hug Your Dog Day
[A day for dog lovers to show affection to their canine companions.]
National Youth HIV and AIDS Awareness Day
[Raising awareness about the impact of HIV and AIDS on young people.]
Salvation Army Founder's Day
[Commemorating the founding of the Salvation Army by William Booth.]
National Report IRS Tax Fraud Day
Take Action for Libraries Day
[Also during National Library Week, encouraging support for libraries.]

Celebrate Teen Literature Day
[Observed during National Library Week, highlighting books for young adults.]
National Bookmobile Day
[Observed during National Library Week]
World Homeopathy Day

Notable Events for April 11th:

[source: National Day Calendar - April 11 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, & Wikipedia]

  145 - Likely birth of Septimius Severus, Roman Emperor.
1241 - The Battle of Mohi saw Mongol forces under Batu Khan decisively defeat the Hungarian army.
1512 - During the War of the League of Cambrai, French and Ferrarese forces win the Battle of Ravenna against Papal-Spanish troops.
1689 - William III and Mary II are crowned joint sovereigns of Great Britain. The Scottish Parliament also concurred with the English decision on this day.
1713 - The Treaty of Utrecht is signed between France and Great Britain, ending the War of the Spanish Succession [Queen Anne's War].
1727 - Johann Sebastian Bach's 'St Matthew Passion' BWV 244b premieres in Leipzig.
1814 - Napoleon Bonaparte is abdicated as Emperor of the French and was exiled to the island of Elba following the Treaty of Fontainebleau.
1856 - The Second Battle of Rivas occurs, where Juan Santamaría famously burned down a hostel where William Walker's filibusters were holed up.
1865 - Confederate General Robert E. Lee surrenders to Union General Ulysses S. Grant at Appomattox Court House, Virginia, effectively ending the American Civil War.
1865 - President Lincoln gives his last public speech.
[He gave the speech at the White House and spoke of the reconstruction of the south, in particular Louisiana.
1868 - Former Shōgun Tokugawa Yoshinobu surrenders Edo Castle to Imperial forces, marking the end of the Tokugawa shogunate in Japan.
1876 - The Benevolent and Protective Order of Elks is organized.
1888 - Henry Ford marries Clara Jane Bryant.
1890 - Ellis Island in New York was designated as an immigration station.
1898 - U.S. President William McKinley asks Congress to declare war on Spain, initiating the Spanish-American War.
1899 - Spain cedes Puerto Rico to the United States.
1900 - The USS Holland VI, the U.S. Navy's first modern submarine, is acquired.
[U.S. Navy bought its first commissioned submarine, USS Holland.]
1909 - The city of Tel Aviv is founded.
1917 - The United States entered World War I.
1919 - Geneva, Switzerland, is chosen as the headquarters of the League of Nations.
1921 - The first live sports broadcast on the radio occurs, a boxing match in Pittsburgh.
1921 - Emir Abdullah establishes the first centralized government in Transjordan.
1945 - During World War II, American forces liberated the Buchenwald concentration camp.
1947 - Jackie Robinson becomes the first African American to play in a modern-day Major League Baseball game, debuting for the Brooklyn Dodgers.
[Jackie Robinson became the first African-American major league baseball player.]
1951 - U.S. President Harry S. Truman relieves General Douglas MacArthur of his command in Korea.
1961 - The trial of former SS officer Adolf Eichmann begins in Jerusalem for his role in the Holocaust.
1963 - Pope John XXIII issues 'Pacem in terris,' the first encyclical addressed to all Christians, advocating for world peace.
1968 - U.S. President Lyndon B. Johnson signs the Civil Rights Act of 1968, prohibiting discrimination in housing.
1970 - Apollo 13 is launched on its ill-fated mission to the Moon.
[Manned by astronauts James Lovell, John Swigert, and Fred Haise.]
1979 - Ugandan dictator Idi Amin is overthrown.
1980 - The U.S. Equal Employment Opportunity Commission [EEOC] publishes guidelines stating that sexual harassment in the workplace was unlawful sex discrimination.
1981 - A massive riot occurs in Brixton, South London.

1981 - U.S. President Ronald Reagan returns home from the hospital after recovering from an assassination attempt.
1991 - The United Nations Security Council issues a formal ceasefire with Iraq, ending the Persian Gulf War.
1994 - The Rwandan genocide begins.
1996 - Forty-three African nations signs the African Nuclear Weapons Free Zone Treaty.
1998 - The Good Friday Agreement is signed in Northern Ireland.
2001 - The detained crew of a U.S. EP-3E aircraft that landed in China after a collision are released.
2001 - Australia's national men's soccer team set a world record with a 31-0 victory against American Samoa.
2004 - A rattlesnake bites a shopper in tree section of home improvement store.
2006 - President Mahmoud Ahmadinejad announces that Iran had enriched uranium. Mafia boss Bernardo Provenzano was arrested in Sicily after 40 years on the run.
2012 - George Zimmerman is arrested and charged with second-degree murder in the shooting of Trayvon Martin.
2012 - An 8.6 magnitude earthquake strikes off the coast of Indonesia, followed by a large aftershock.
2013 -  Fossilized dinosaur eggs with embryos are discovered in China.
2019 - WikiLeaks founder Julian Assange is forcibly removed from the Ecuadorian embassy in London and arrested.
2023 - The Boston Bruins break the NHL record for most team points in a season.

Other Observances:

National Pet Day
[A day to celebrate the joy pets bring to our lives and to raise awareness about the needs of orphaned pets. Consider spending extra time with your furry, scaly, or feathered friends, or think about supporting a local animal shelter.]

National Living Donor Day
[Honors individuals who have saved lives through organ and tissue donation. It's a day to recognize their selfless act and encourage others to consider living donation.]
Poet in a Cupcake Day
[A creative and fun holiday that encourages combining poetry with the enjoyment of cupcakes. Maybe try writing a short poem on a cupcake wrapper!]
National Clean Up Your Pantry Day
National Cheese Fondue Day
[A delicious holiday to enjoy melted cheese with bread, vegetables, and other dippables. Why not gather some friends for a fondue party tonight?]
National Submarine Day
[Commemorates the establishment of the U.S. Navy's modern submarine force with the commissioning of the USS Holland VI on this day in 1900.]
International 'Louie Louie' Day
[Celebrates the iconic and often misinterpreted rock and roll song.]
National Eight Track Tape Day
[A nostalgic nod to the music format of the 1960s and 70s. Dust off those old tapes and players if you still have them!]
National Barbershop Quartet Day
[Celebrates the unique four-part harmony of barbershop music. Perhaps you can find a local quartet performing or listen to some classic barbershop recordings.]
National Donate Life Blue & Green Day [Changes Annually]
[Part of National Donate Life Month, this day encourages wearing blue and green to promote organ, eye, and tissue donation.]
Blue & Green Day [Third Friday in April]
[A day to show support for environmental awareness and sustainability by wearing blue and green.]
Global Day to End Child Sexual Abuse
National Day of Silence [Changes Annually]
[A student-led national event where participants take a vow of silence to highlight the silencing and erasure of LGBTQ+ people at school.]
World Parkinson's Disease Day
[Raises awareness of Parkinson's disease and supports those living with it.]

Born:

  145: Septimius Severus, Roman Emperor [probable] [193 to 211]. [Died: February 4, 211]
1722: Christopher Smart, English poet. [Died: May 20, 1771]
1794: Edward Everett, American politician, Unitarian pastor, educator, diplomat, and orator from Massachusetts. [Died: January 15, 1865]
1862: Charles Evans Hughes, American politician, academic, and jurist. 11th Chief Justice of the U.S. Supreme Court [1930 to 1941]. [Died: August 27, 1948]
1893: Dean Acheson, American politician and lawyer. U.S. Secretary of State. [Died: October 12, 1971]
1908: Jane Matilda Bolin, American attorney and judge. She was the first African American woman to serve as a judge in the United States. [Died: January 8, 2007]
1913: Oleg Cassini, French-American fashion designer. [Died: March 17, 2006]
[Though born to Russian aristocracy and raised in Italy, he built a fashion empire that was unmistakably American.]
1928: Ethel Kennedy, American socialite and wife of Robert F. Kennedy. [Died: October 10, 2024]
1932: Joel Grey, American actor, singer, dancer, photographer, and theatre director.
1941: Ellen Goodman, American Pulitzer Prize-winning columnist.

[American journalist and syndicated columnist. She won a Pulitzer Prize in 1980.]
1947: Peter Riegert, American actor ['Animal House'].
1950: Bill Irwin, American actor and comedian.
1957: Jim Lauderdale, American country, bluegrass, and Americana singer-songwriter.
1960: Jeremy Clarkson, English journalist and television presenter ['Top Gear,' and 'The Grand Tour'].
1972: Jason 'Tek' Varitek, American professional baseball coach, and former catcher [Boston Red Sox].
1973: Jennifer Esposito, American actress.
1974: David Banner, American rapper, record producer, and actor.
1974: Trot 'Dirt Dog' Nixon, American former professional baseball player.
1980: Mark 'Tex' Teixeira, American former professional baseball player.
1981: Alessandra Ambrosio, Brazilian supermodel and actress.
1987: Joss Stone, English singer, songwriter and actress.
2000: Milly Alcock, Australian actress ['House of the Dragon'].

Died:

1875: Samuel Heinrich Schwabe, German amateur astronomer remembered for his work on sunspots. [Born: October 25, 1789]
1906: James A. Bailey, American owner and manager of several 19th-century circuses [Ringling Bros. and Barnum & Bailey Circus, also billed as 'The Greatest Show on Earth']. [Born: July 4, 1847]
1926: Luther Burbank, American botanist, horticulturist, and pioneer in agricultural science who developed more than 800 strains and varieties of plants over his 55-year career. [Born: March 7, 1849]
1987: Erskine Caldwell, American novelist and short story writer. [Born: December 17, 1903]
2006: June Pointer, American singer, best known as the youngest of the singing group 'The Pointer Sisters.' [Born: November 30, 1953]
2007: Kurt Vonnegut, American author known for his satirical and darkly humorous novels. [Born: November 11, 1922]
2007: Roscoe Lee Browne, American actor and director. [Born: May 2, 1922]
2013: Jonathan Winters, American comedian, actor, author, television host, and artist. [Born: November 11, 1925]

Notable Events for April 12th:

[source: National Day Calendar - April 12 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, & Wikipedia]

1204 - The Crusaders of the Fourth Crusade breach the walls of Constantinople.
1606 - The Union Jack is adopted as the national flag of Great Britain.
1833 - Charles A. Gayler receives a patent for a fireproof safe.
1833 - Charles Gayler receives a patent for a fireproof iron chest.
1859 - First U.S. championship billiards game takes place in Detroit, Michigan.
[Michael J Phelan wins the first 1st U.S. billiards championship.]
1861 - The American Civil War begins as Confederate forces fire on Fort Sumter in Charleston, South Carolina.
[The U.S. Civil War begins.]
1877 - The catcher's mask is used for the first time in a baseball game.
1892 - George C Blickensderfer patents the first portable typewriter.
1936 - Women are granted the right to vote in Ontario, Canada.
1936 - Nova Scotia’s Moose River gold mine collapses, trapping 3 people.
1937 - The first aircraft jet engine is successfully ground-tested by Sir Frank Whittle in Rugby, England.
1938 - New York becomes the first state to require medical tests for marriage licenses.
1945 - U.S. President Franklin D. Roosevelt dies in office; Vice President Harry S. Truman becomes the 33rd President.
1954 - Bill Haley and His Comets record '(We're Gonna) Rock Around The Clock,' a song that would become a rock and roll anthem.  
1955 - Dr. Jonas Salk's polio vaccine is declared safe and effective.  
1961 - Soviet cosmonaut Yuri Gagarin becomes the first human in space, orbiting the Earth aboard Vostok 1.
1969 - Aquarius/Let the Sunshine In by the 5th Dimension tops the charts for 6 weeks.
1980 - Terry Fox begins his Marathon of Hope across Canada in St. John’s, Newfoundland, by dipping his artificial leg into the Atlantic Ocean.
1981 - The Space Shuttle Columbia is launched on its first orbital test flight (STS-1).
[Space shuttle Columbia is first launched.]
1983 - Harold Washington is elected the first African American mayor of Chicago.
1987 - Texaco Inc. becomes the largest U.S. company in history to file bankruptcy after it is ordered to pay Pennzoil $8.53 billion in damages for unfair business practices.
1988 - Bernardo Bertolucci's film 'The Last Emperor' wins all nine Academy Awards for which it was nominated.
1992 - Golfer Fred Couples wins the Masters tournament.

Other Observances:

National Desfast Day
National Grilled Cheese Sandwich Day
[A day to enjoy this classic comfort food.]
National Only Child Day
[Celebrates individuals who are only children.]
National Licorice Day
[A day for licorice lovers to enjoy all its forms.]
National Big Wind Day
[Commemorates the highest natural wind gust ever recorded on Earth: 231 mph on Mount Washington, New Hampshire, on April 12, 1934.]
National Record Store Day [Changes Annually]
[Celebrates the culture of independently owned record stores.]
Walk on Your Wild Side Day
[Encourages people to step outside their comfort zones.]

International Hamster Day  [also known as 'World Hamster Day']

Wear a Star Day
[A day to share grief and cherish memories of loved ones.]
Passover Begins
[This major Jewish holiday, a spring festival, commences today and lasts for eight days. Many Christians also participate in celebrating Passover.]
National For Twelves Day
[A day to celebrate the number 12 in various fun ways.]
National Colorado Day
[Recognizes Colorado as the 38th state to join the Union.]
International Day of Pink
Slow Art Day
Teak Awareness Day
D.E.A.R. Day [Drop Everything And Read]
[Encourages people of all ages to take some time to read.]
Halifax Day
[A local observance in Halifax, North Carolina, commemorating the Halifax Resolves, a significant step towards American independence.]
International Day for Street Children
[Raises awareness for the rights and needs of street children, worldwide.]
International Day of Human Space Flight
[Celebrates the anniversary of Yuri Gagarin's first human spaceflight.]
Russian Cosmonaut Day
[Another commemoration of Yuri Gagarin's spaceflight.]
Yuri's Night
[A global celebration of humanity's achievements in space exploration.]
National Catch and Release Day [Second Saturday of April]
[Promotes responsible fishing practices.]

Born:

1724: Lyman Hall, Founding Father and signer of the Declaration of Independence. [Died: October 19, 1790]
1792: John Lambton, 1st Earl of Durham, Governor-general of British North America. [Died: July 28, 1840]
[Known as 'Radical Jack,' and commonly referred to in Canadian history texts as Lord Durham, was a British Whig statesman, colonial administrator, Governor General and high commissioner of British North America.]
1838: John Shaw Billings, American librarian, building designer, and surgeon. [Died: March 11, 1913]
[Surgeon who modernized the U.S. Army Library of the Surgeon General's Office.]

1879: Frederic G. Melcher, American publisher, bookseller, editor, and a major contributor to the library science field and book industry. [Died: March 9, 1963]

[Founder of Children's Book Week.]
1883: Imogen Cunningham, Famous American photographer known for her botanical photography, nudes, and industrial landscapes. [Died: June 23, 1976]

1908: Robert Lee Scott, Jr., American brigadier general in the United States Air Force and a flying ace of World War II, credited with shooting down 13 Japanese aircraft. [Died: February 27, 2006]
1916: Beverly Cleary, American writer of children's and young adult fiction. [Died: March 25, 2021]
[Famous children's author who wrote 'Henry Huggins,' and 'Ramona and Her Mother.']

1916: Benjamin Libet, Neuropsychologist who is considered one of the early pioneers in the study of human consciousness. [Died: July 23, 2007]
1924: Dr. Peter Safar, Austrian anesthesiologist of Czech descent. He is credited with pioneering cardiopulmonary resuscitation [CPR]. [Died: August 3, 2003]
1924: Curtis Turner, Stock car racer who ran 184 NASCAR races over 17 years, winning 17 titles. [Died: October 4, 1970]
1925: Evelyn Berezin, Computer scientist and engineer who created the first word processor and the first airline reservation system. [Died: December 8, 2018]
1932: Herbert Butros Khaury, American musician and musical archivist. [Died: November 30, 1996]

[Known as 'Tiny Tim' who sang 'Tiptoe Through the Tulips.']

1933: Montserrat Caballe, Spanish operatic soprano singer, from Catalonia. [Died: October 6, 2018]
1940: Herbie Hancock, American jazz musician, bandleader, and composer.
1942: Frank Bank, American actor. [Died: April 13, 2013]
[Particularly known for his role as Clarence 'Lumpy' Rutherford on the 1957–1963 situation comedy television series 'Leave It to Beaver.']
1947: David Letterman, American television host, comedian, writer, producer, and auto racing team owner.
[Known as talk show host of the Late Night with David Letterman [NBC] and the Late Show with David Letterman [CBS].]
1949: Carol Ross Barney, American architect and the founder and Design Principal of Ross Barney Architects.
[The first woman architect to design a federal building.]
1950: David Cassidy, American actor and musician. [Died: November 21, 2017]
[Best known for his role as Keith Partridge, the son of Shirley Partridge [played by his real-life stepmother, actress Shirley Jones], in the 1970s musical-sitcom 'The Partridge Family.' This role catapulted Cassidy to teen idol status as a superstar pop singer of the 1970s.]
1956: Andy García, American actor, director, producer, and musician.
1957: Vince Gill, American singer, songwriter, and musician.
1971: Shannen Doherty, American actress. [Died: July 13, 2024]
[Known for her primary roles in 'Little House on the Prairie,' 'Girls Just Want to Have Fun,' 'Heathers,' 'Beverly Hills, 90210,' 'Mallrats,' and 'Charmed.']
1979: Jennifer Morrison, American actress and director.
1979: Claire Danes, American actress.
1997: Stubbs the Cat, Honorary Mayor of Talkeetna, Alaska. [Died: July 21, 2017]

Died:

1912: Clara Barton, Nurse who founded the American Red Cross. [Born: December 25, 1821]
1945: Franklin D. Roosevelt, 32nd U.S. President. Known as 'FDR.' [Born: January 30, 1882]
1989: Sugar Ray Robinson, American professional boxer who competed from 1940 to 1965. [Born: May 3, 1921]
1989: Abbie Hoffman, American political and social activist. [Born: November 30, 1936]
[Co-founded the Youth International Party ('Yippies') and was a member of the Chicago Seven. He was also a leading proponent of the Flower Power movement.]
2019: Georgia Engel, American actress. [Born: July 28, 1948]
[Best known as Georgette Franklin on 'The Mary Tyler Moore Show.']

Notable Events for April 13th:

[source: National Day Calendar - April 13 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, & Wikipedia]

Pre-1600:

1111 - Henry V, King of Germany, is crowned Holy Roman Emperor.
1204 - Constantinople falls to the Crusaders of the Fourth Crusade, temporarily ending the Byzantine Empire.  
1455 - The Thirteen Years' War begins with the Battle for Kneiphof.

1601-1900:

1612 - Samurai Miyamoto Musashi defeats Sasaki Kojirō in a famous duel on Funajima island.
1613 - Samuel Argall, after capturing Pocahontas, sets off to Jamestown to exchange her for English prisoners.
1699 - The Sikh religion is formalized as the Khalsa by Guru Gobind Singh.
1742 - George Frideric Handel's oratorio Messiah makes its world premiere in Dublin, Ireland.
1777 - During the American Revolutionary War, American forces are ambushed and defeated in the Battle of Bound Brook, New Jersey.
1796 - The first elephant arrives in U.S. from India.
1829 - The Roman Catholic Relief Act grants Roman Catholics in the United Kingdom the right to vote and sit in Parliament.
1849 - Lajos Kossuth present the Hungarian Declaration of Independence.
1860 - The first Pony Express rider reach Sacramento, California with mail.
1861 - The American Civil War begins as Union forces surrendered Fort Sumter to Confederate forces.
1865 - American Civil War: Raleigh, North Carolina, are occupied by Union forces.
1869 - George Westinghouse receives the patent for a steam power brake.
1870 - The New York City Metropolitan Museum of Art is founded.
1873 - The Colfax massacre occurs in Louisiana, resulting in the deaths of over 60 African American men.  
1879 - George Westinghouse receives a patent for a steam power brake.

1901-2000:

1902 - James C. Penney opens his first store in Kemmerer, Wyoming.
1904 - Congress authorizes a Lewis and Clark Exposition $1 gold coin for circulation.
1909 - The 31 March Incident leads to the overthrow of Sultan Abdul Hamid II in the Ottoman Empire.
1919 - The Jallianwala Bagh massacre takes place in Amritsar, India, where British troops killed hundreds of unarmed demonstrators.
1920 - Helen Hamilton becomes the first female Civil Service Commissioner.
1924 - AEK, a major Greek multi-sport club, is established in Athens.
1934 - Nearly 4.7 million families in the U.S. report receiving welfare payments, during the Great Depression.
1940 - Cornelius 'Dutch' Warmerdam becomes the first man to pole vault 15 feet, using a bamboo pole.
1941 - A pact of neutrality is signed between the USSR and Japan. German troops captured Belgrade, Yugoslavia.  
1943 - The Jefferson Memorial is dedicated in Washington, D.C., on Thomas Jefferson's 200th birthday.
1945 - World War II: German troops kill over 1,000 political and military prisoners in Gardelegen, Germany. Soviet and Bulgarian forces captured Vienna.  
1946 - White pitcher Eddie Klepp is signed by the Negro League champions Cleveland Buckeyes.
1949 - Dr. Philip S. Hench of the Mayo Clinic announces that cortisone could treat rheumatoid arthritis.
1953 - The CIA launches the mind-control program Project MKUltra.
1960 - The world's first satellite navigation system, Transit 1B, is launched.  
1961 - The U.N. General Assembly condemns South Africa because of apartheid.
1964 - Sidney Poitier becomes the first Black man to win an Academy Award for Best Actor for the film Lilies of the Field.
1965 - The Beatles record their hit song 'Help!'
1970 - The phrase 'Okay, Houston, we've had a problem here,' is transmitted by Apollo 13 after a Beech-built oxygen tank explodes on its way to Moon.  
1970 - An oxygen tank explodes on Apollo 13 en route to the Moon, jeopardizing the mission and the crew's lives. Greek composer and politician Mikis Theodorakis was freed from internment.  
1972 - The Universal Postal Union recognizes the People's Republic of China as the only legitimate Chinese representative, expelling the Republic of China [Taiwan].

[The Battle of An Lộc began in the Vietnam War.]
1974 - The United States Post Office introduces the first self-adhesive postage stamps.
1976 - The U.S. Treasury Department reintroduces the two-dollar bill as a Federal Reserve Note.
1979 - The world's longest doubles ping-pong match ends after 101 hours.  
1980 - The US boycotts the summer Olympic Games in Moscow, Russia.
1984 - Pete Rose gets his 4000th hit in Major League Baseball.  
1986 - Jack Nicklaus wins his sixth Masters Tournament.  
1990 - The Soviet Union admits that the Katyn Massacre of 1940 was carried out by Stalin's secret police.
1994 - The World Champion Houston Rockets set the NBA record for the largest margin of victory, defeating the Miami Heat by 56 points.  
1997 - Tiger Woods becomes the youngest golfer to win the Masters Tournament, and the first person of African heritage to win a major golf title.
 
2001-Present:

2004 - A dwarf mouse named 'Yoda' celebrates his fourth birthday, making him the oldest of his kind and, far beyond 100 in human years.
[Yoda owed his longevity to genetic modifications that affected his pituitary and thyroid glands and reduced insulin production - and which left him a third smaller than an average mouse and very sensitive to cold.]
2004 - Barry Bonds, the San Francisco slugger, hits his 661st career home run, passing Willie Mays (also his Godfather) to take sole possession of third place on baseball’s career list.
2014 - Three people are killed in a shooting in Overland Park, Kansas.
2022 - The Russian cruiser Moskva is attacked by Ukrainian missiles and sank in the Black Sea.
2024 - Iran and its proxies launches a large-scale drone and missile attack on Israel. Israel bombed the Iranian embassy in Damascus.

Other Observations:

National Borinqueneers Day
[Honors the 65th Infantry Regiment, a Puerto Rican regiment of the U.S. Army.]

National Make Lunch Count Day
[Encourages people to make their midday meal more nutritious and enjoyable.]

National Peach Cobbler Day
[A day to enjoy the sweet and comforting dessert.]

National Scrabble Day
[Celebrates the popular word game, coinciding with the birthday of its inventor, Alfred Butts.]

National Thomas Jefferson Day
[Commemorates the birthday of the third U.S. President.]

International Plant Appreciation Day
National Silly Earring Day
Holy Week  [Also called, ‘Great and Holy Week,’ or ‘Passion Week.]
[Holy Week has five days of special significance, which start on Palm Sunday, the Sunday before Easter, until Holy Saturday [Black Saturday], but doesn’t include Easter Sunday.]
Palm Sunday
Palm Sunday Orthodox
Passover
Theravada New Year
[This day marks Buddha’s birth, death, enlightenment, and the start of the rainy season.]
Semana Santa
[Observed annually in Spain during the week immediately before Easter. This year it takes place from April 13 to 20.]
Unfairly Prosecuted Persons Day
[Slovakia holds a day of remembrance for the aggression against monks in communist Czechoslovakia, in an event called the Unfairly Prosecuted Persons Day, which is observed each year on April 13.]
Songkran Water Festival  [Celebrated Annually - Extends to April 15.]
['The world’s wettest festival.' This celebration is important in particular to the people of Thailand, and most countries of Southeast Asia, as it represents the start of a New Year.]

Born:

1570: Guy Fawkes, English soldier and member of the Gunpowder Plot [probable]. [Died: January 31, 1606]
1735: Isaac Low, Founder of the New York Chamber of Commerce, which was the first organization of it's kind in the U.S. [Died: July 25, 1791]
1743 [April 13 [O.S. April 2]: Thomas Jefferson, American Founding Father, principal author of the Declaration of Independence, and the third president of the United States [1801 to 1809]. [Died: July 4, 1826]
1772: Eli Terry, Clockmaker who received a patent shelf clock mechanism that would eventually lead to making clocks affordable for everyone. [Died: February 24, 1852]
1852: Frank Winfield Woolworth, American entrepreneur, and founder the F. W. Woolworth Company, Woolworth's five-and-dime stores. [Died: April 8, 1919]
[One of the first five and dime stores in the country.]
1854: Lucy Craft Laney, American educator, and founder of the Haines Normal and Industrial School [Georgia]. [Died: October 23, 1933]
1866: Butch Cassidy [Robert LeRoy Parker], American outlaw, train and bank robber, and the leader of the wild west gang, the 'Wild Bunch.' [Died: November 7, 1908]
1879: Oswald Bruce Cooper, American type designer, lettering artist, graphic designer, and teacher of these trades. [Died: December 17, 1940]

[He is best known as the designer and namesake of the Cooper Black typeface.]
1899: Alfred Mosher Butts, American architect, and famous creator/inventor of the game 'Scrabble.' [Died: April 4, 1993]
1906: Samuel Beckett, Irish novelist, playwright, and poet [Nobel Prize laureate]. [Died: December 22, 1989]
1909: Eudora Welty, Short story writer and novelist who wrote 'The Optimist's Daughter,' which awarded her to become the first living author to have her works published by the Library of America. [Died: July 23, 2001]
1916: Edna Lewis, Considered the 'Mother of Soul Food.' [Died: February 13, 2006]
1917: Robert Orville Anderson, American businessman, art collector, and philanthropist who founded Atlantic Richfield Company [ARCO]. [Died: December 2, 2007]
1931: Jon Stone, One of the original crew members on Sesame Street who also helped develop the characters Cookie Monster, Oscar the Grouch and Big Bird. [Died: March 30, 1997]
1939: Paul Sorvino, American actor ['Goodfellas,' 'Law & Order']. [Died: July 25, 2022]
1941: Michael Stuart Brown, Geneticist who was a co-recipient of the Nobel Prize in Physiology or Medicine for describing the regulation of cholesterol metabolism.
1943: Bill Conti, American composer [theme music for Rocky and James Bond films].
1945: Tony Dow, American actor fondly remembered for his role as Wally on 'Leave it to Beaver.' [Died: July 27, 2022]
1946: Al Green, American soul singer, songwriter, pastor and record producer.
1950: Ron Perlman, American actor ['Hellboy,' 'Sons of Anarchy'].
1951: Peabo Bryson, American R&B and soul singer-songwriter.
1951: Max Weinberg, Drummer for Bruce Springsteen and the E Street Band.
[Also known as TV personality, bandleader for Conan O'Brien on 'Late Night with Conan O'Brien,' and 'The Tonight Show with Conan O'Brien.' He is the father of former Slipknot drummer Jay Weinberg.]

1963: Garry Kasparov, Russian chess grandmaster and former World Chess Champion.

1964: Caroline Rhea, Canadian actress and stand-up comedian ['Sabrina the Teenage Witch'].

1970: Ricky Schroder, American actor ['Silver Spoons,' 'NYPD Blue'].
1972: Aaron Lewis, American singer and guitarist [Staind].
1975: Lou Bega, German singer ['Mambo No. 5'].
1976: Glenn Howerton, American actor ['It's Always Sunny in Philadelphia'].
1982: Ty Dolla $ign, American rapper and singer.
1988: Allison Williams, American actress ['Girls, Get Out'].

Died:

1938: Archie 'Grey Owl' Belaney, English–Canadian popular writer, public speaker and conservationist. [Born: September 18, 1888]
1941: Annie Jump Cannon, American astronomer. [Born: December 11, 1863]
1993: Wallace Stegner, American novelist, writer, environmentalist, and historian. [Born: February 18, 1909]
[Called 'The Dean of Western Writers.']
2009: Mark 'the Bird' Fidrych, American professional baseball pitcher who played five seasons in Major League Baseball (MLB) with the Detroit Tigers. [Born: August 14, 1954]
2012: Jonathan Frid, Canadian actor, best known for his role as vampire Barnabas Collins on the gothic television soap opera 'Dark Shadows.' [Born: December 2, 1924]

Notable Events for April 14th:

[source: National Day Calendar - April 14 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, National Today, & Wikipedia]

1471 - In England, the Yorkists under Edward IV defeat the Lancastrians under the Earl of Warwick at the Battle of Barnet. The Earl is killed, and Edward IV resumes the throne.  
1561 - A celestial phenomenon is reported over Nuremberg, described by some as an aerial battle.

1775 - The first American abolition society, the 'Society for the Relief of Free Negroes Unlawfully Held in Bondage,' is organized in Philadelphia by Benjamin Franklin and Benjamin Rush.
[The abolitionist society forms in Philadelphia, PA.]  
1792 - The French Revolutionary War begins when France declares war on Austria.
1793 - French troops led by Léger-Félicité Sonthonax defeat slave settlers in the Siege of Port-au-Prince.
1816 - Bussa's Rebellion, a major slave revolt in British-ruled Barbados, begins. Bussa is now remembered as Barbados' first national hero.  
1818 - The U.S. Medical Corps is formed.
1828 - Noah Webster's 'American Dictionary of the English Language' is first printed, introducing distinctly American words to the lexicon.
[Noah Webster copyrights the first American dictionary.]  
1836 - The U.S. Congress forms the Territory of Wisconsin.
1841 - Edgar Allan Poe publishes his first detective story [Murders in Rue Morgue].
1849 - Hungary declares itself independent of Austria with Lajos Kossuth as its leader.  
1858 - A severe fire in Christiania (now Oslo), Norway, destroys several city blocks, leaving about 1,000 people homeless.
1860 - The first Pony Express rider reaches San Francisco, California.
1863 - William Bullock patents 'continuous-roll printing press.'
1865 - U.S. President Abraham Lincoln is shot by John Wilkes Booth at Ford's Theatre in Washington, D.C. He dies the following day.
[John Wilkes Booth shoots President Lincoln in Ford's Theatre.]
1865 - William H. Seward, the U.S. Secretary of State, and his family are attacked at home by Lewis Powell, an accomplice of John Wilkes Booth.  
1881 - The Four Dead in Five Seconds Gunfight that occurs in El Paso, Texas.
1890 - The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.  
1894 - The first commercial motion picture house opens in New York City, using ten Kinetoscopes for peep-show viewing.  
[The first ever commercial motion picture house [movie theatre] opens in New York City.]
1895 - The Ljubljana earthquake, the most destructive and last major earthquake in the area, occurs.
1902 - James Cash Penney opens his first The Golden Rule Store, which later becomes becomes JCPenney.
1910 - President William Howard Taft becomes the first U.S. president to throw out the ceremonial first pitch at a Major League Baseball game.  
1912 - The RMS Titanic strikes an iceberg in the North Atlantic at 11:40 PM Newfoundland time and begins to sink.
1914 - Dr. Harry Plotz isolates the bacteria that causes Typhus Fever.
1914 - Stacy G. Carkhuff [Firestone Tire and Rubber Company] receives a patent for non-skid tire pattern.
1918 - American pilots engage in the first dogfight for the U.S. over the Western Front near Toul, France.  
1920 - A series of tornadoes in Alabama and Mississippi kill 219 people.
1927 - The first Volvo car is manufactured in Gothenburg, Sweden.
1931 - The Second Spanish Republic is proclaimed, and King Alfonso XIII goes into exile. In Barcelona, Francesc Macià proclaims the Catalan Republic.
1935 - The 'Black Sunday' dust storm, one of the most devastating of the Dust Bowl era, sweeps across the Oklahoma and Texas panhandles and neighboring areas.  
1939 - John Steinbeck publishes his novel 'The Grapes of Wrath.'
1940 - World War II: Royal Marines land in Namsos, Norway, preceding a larger Allied force.
1941 - World War II: German and Italian forces attack Tobruk, Libya.
1944 - The Bombay Explosion: A massive explosion on the cargo ship Fort Stikine in Bombay harbor kills around 1,300 people and injures 3,000.
1945 - Razing of Friesoythe: The 4th Canadian [Armoured] Division deliberately destroys the German town of Friesoythe.
1956 - The Ampex Corporation demonstrates the first commercial videotape recorder.
1958 - The Soviet satellite Sputnik 2 falls from orbit after a 162-day mission.
1960 - The Montreal Canadiens defeat the Toronto Maple Leafs to win their fifth consecutive Stanley Cup.
1967 - The first Major League Baseball game played outside the United States takes place in Montreal, Canada, with the Montreal Expos facing the St. Louis Cardinals.
1969 - At the Academy Awards, Katharine Hepburn and Barbra Streisand tie for the Best Actress Oscar, the first tie in a major acting category in three decades.
1978 - A Korean Air Lines Boeing 707 crashes in Russia after being fired upon by the Soviets.
1986 - The heaviest hailstones ever recorded (about 1 kg or 2.2 lbs each) hit Bangladesh, killing 92 people.
1986 - The United States bombs terrorist and military targets in Libya in retaliation for Libyan sponsorship of terrorism.
1988 - The Soviet Union agrees to withdraw its troops from Afghanistan at a United Nations ceremony in Geneva.
1988 - The USS Samuel B. Roberts strikes a mine in the Persian Gulf during Operation Earnest Will.
1991 - The Republic of Georgia introduces the post of President following its declaration of independence from the Soviet Union.
1994 - In a friendly fire incident during Operation Provide Comfort in northern Iraq, two U.S. Air Force aircraft mistakenly shoot down two U.S. Army helicopters, killing 26 people.
1999 - A severe hailstorm strikes Sydney, Australia, causing A$2.3 billion in insured damages, the most costly natural disaster in Australian history at the time.
2002 - Venezuelan President Hugo Chávez returns to office two days after being ousted and arrested by the country's military.
2003 - The Human Genome Project is complete, with 99% of the human genome sequenced to an accuracy of 99.99%.
2003 - U.S. troops in Baghdad capture Abu Abbas, leader of the Palestinian group that killed an American on the hijacked cruise liner MS Achille Lauro in 1985.
2010 - The Eyjafjallajökull volcano in Iceland begins erupting, sending ash plumes into the sky and disrupting air traffic across northern and central Europe for days.
2014 - Two bombs detonate at a bus station in Nyanya, Nigeria, killing at least 88 people.
2019 - The historic Notre-Dame de Paris cathedral catches fire during a restoration campaign, destroying most of its roof and spire.
2022 - During the Russian invasion of Ukraine, the Russian warship Moskva sinks.
2023 - The European Space Agency launches the Jupiter Icy Moons Explorer [JUICE] mission.
2024 - Flooding in the Persian Gulf begins, results in fatalities in Oman.

Other Observances:

National Gardening Day
[A day to celebrate the joys and benefits of gardening.]

National Dolphin Day
[A day dedicated to raising awareness about dolphin conservation.]
Look Up at the Sky Day
[Encourages people to take a moment to appreciate the sky above.]
National Pecan Day

[A day to enjoy and celebrate pecans in all their forms.]

National Reach as High as You Can Day
National Pan American Day
National Ex-Spouse Day

 [An unofficial holiday with varying intentions, sometimes seen as a day for reflection or even reconciliation.]
World Quantum Day

[Celebrated annually on April 14th, referencing the first digits of Planck's constant (4.14), to promote public understanding of Quantum Science and Technology.]
International Moment of Laughter Day
National Donate a Book Day
Perfume Day

Notable Events for April 15th:

[source: National Day Calendar - April 15 | Birthdays & Events]

[+ Generic AI Search Results, Almanac, & Wikipedia]

1452 - Leonardo da Vinci, the iconic Italian Renaissance polymath, is born.
1755 - Samuel Johnson's 'A Dictionary of the English Language' is published in London.
1817 - Thomas Hopkins Gallaudet and Laurent Clerc found the Connecticut Asylum for the Education and Instruction of Deaf and Dumb Persons, which later becomes known as the American School for the Deaf.
[American School for the Deaf is founded in Hartford, Connecticut.]
1854 - First state entomologist position is approved in New York.
1861 - President Lincoln calls for 75,000 Union militia volunteers.
1865 - Abraham Lincoln, the 16th President of the United States, dies after being assassinated by John Wilkes Booth the previous evening. Vice President Andrew Johnson is sworn in as the 17th President.
1870 - Last day U.S. silver coins allowed to circulate in Canada.
1872 - Canadian thanksgiving day is held after Prince of Wales recovers from a serious illness.
1877 - The first home telephone is installed at a house in Somerville, Massachusetts.
1892 - The General Electric Company is formed.
[General Electric Co. is incorporated.]
1912 - The RMS Titanic sinks in the North Atlantic Ocean after striking an iceberg, resulting in the deaths of over 1,500 people.
[The RMS Titanic sank at 2:27 AM off Newfoundland, enroute to the U.S.]
1920 - First Canadian small penny coin is released.
1923 - Insulin becomes generally available for the treatment of diabetes.
1923 - The first film with sound plays at the Rialto Theater, in New York City.
[This is slightly inaccurate. While experiments with sound films occurred earlier, the widespread commercial debut of synchronized sound in a feature film is generally credited to 'The Jazz Singer' in 1927. There might have been earlier demonstrations or short films with sound, but it wasn't the established beginning of 'talkies,' or 'talking pictures.']
1924 - The first road atlas is published by Rand McNally.
1947 - Jackie Robinson makes his debut with the Brooklyn Dodgers, breaking the color barrier in Major League Baseball.
1955 - Ray Kroc opens his first McDonald's franchise restaurant in Des Plaines, Illinois, marking the founding of the modern McDonald's Corporation.
1964 - Chesapeake Bay Bridge-Tunnel opened, Virginia-Delmarva Peninsula.
1974 - First national lottery drawing takes place in Canada.
1989 - The Hillsborough disaster in Sheffield, England, results in the deaths of 97 Liverpool football fans, due to a human crush.

1989 - Tiananmen Square protests begin in Beijing, following the death of reformer Hu Yaobang.
1989 - The largest lottery of the time is drawn in Illinois in the amount of $69 million.
2013 - The Boston Marathon bombing occurs, killing three people and injuring hundreds near the finish line.
2019 - A major fire severely damages the Notre-Dame Cathedral in Paris.

Other Observances:

National Tax Day
[In the United States, April 15th is the traditional deadline for filing federal and state income tax returns.]
Take A Wild Guess Day
[A day to embrace spontaneity and make a playful guess about something.]
National Rubber Eraser Day
[A day to appreciate the handy tool that helps us correct our mistakes.]
Purple Up! Day
[Part of the Month of the Military Child, this day encourages everyone to wear purple to show support for military children.]
National Glazed Spiral Ham Day
[A culinary day to enjoy this specific type of ham.]
National Laundry Day
[A practical day, likely to encourage getting laundry done.]
National Titanic Remembrance Day
[Commemorates the anniversary of the sinking of the RMS Titanic.]
Jackie Robinson Day
[Celebrated annually to honor Jackie Robinson, who broke Major League Baseball's color barrier on April 15, 1947.]

Born:

1452: Leonardo da Vinci, Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. [Died: May 2, 1519]
1786: Walter Channing, American physician and professor of medicine. [Died: July 27, 1876]
[Physician who was the first to use anesthesia during childbirth.]
1829: Mary Harris Thompson, American physician and surgeon. [Died: May 21, 1895]
[The first American woman surgeon.]
1894: Bessie Smith, African-American blues singer widely renowned during the Jazz Age. [Died: September 26, 1937]
[Nicknamed the 'Empress of the Blues,' formerly 'Queen of the Blues,' she was the most popular female blues singer of the 1930s.]
1916: Alfred S. Bloomingdale, American businessman. [Died: August 23, 1982]
[Became known as the "Father of the Credit Card" after launching the Dine and Sign credit card.]
1928: Norma Merrick Sklarek, American architect. [Died: February 6, 2012]
[Sklarek was the first African American woman to become a licensed architect in the states of New York [1954], and California [1962], as well as the first Black woman to become a member of the American Institute of Architects [AIA].]
1933: Roy Clark, American singer, musician, and television presenter. [Died: November 15, 2018]
[He's best known for having hosted 'Hee Haw,' a nationally televised country variety show, from 1969 to 1997. Clark was an important and influential figure in country music, both as a performer and in helping to popularize the genre.]
1933: Elizabeth Montgomery, American actress whose career spanned five decades in film, stage, and television. [Died: May 18, 1995]
[Fondly remembered for her role as Samantha in the TV series 'Bewitched.']
1937: Robert W. Gore, American engineer and scientist, inventor and businessman. [Died: September 17, 2020]
[Co-inventor of Gore-Tex, the waterproof and breathable fabric used in sporting and outdoor gear.]
1959: Emma Thompson, British actress and screenwriter.
[Her work spans over four decades of screen and stage, and her accolades include two Academy Awards, three BAFTA Awards, two Golden Globe Awards and a Primetime Emmy Award. In 2018, she was made a dame (DBE) by Queen Elizabeth II for her contributions to drama.]
1978: Chris Stapleton, American country singer-songwriter and guitarist.
[Known country singer of the hit song 'Tennessee Whiskey.' He has co-written with Vince Gill, Peter Frampton, Sheryl Crow, and Ed Sheeran, among others.]
1979: Luke Evans, Welsh actor and singer.
1990: Emma Watson, English actress.
[As a child, she rose to stardom after landing her first professional acting role as Hermione Granger in the 'Harry Potter' film series, having previously acted only in school plays.]

Died:

1865: Abraham Lincoln, 16th U.S. president, serving from 1861 until his assassination in 1865. [Born: February 12, 1809]
[He led the United States through the American Civil War, defeating the Confederate States of America, playing a major role in the abolition of slavery, expanding the power of the federal government, and modernizing the U.S. economy.]
1980: Jean-Paul Sartre, French philosopher, playwright, novelist, screenwriter, political activist, biographer, and literary critic, considered a leading figure in 20th-century French philosophy and Marxism. [Born: June 21, 1905]
1990: Greta Garbo, Swedish-American actress, and a premier star during Hollywood's silent and early golden eras. [Born: September 18, 1905]
1994: John Curry, British figure skater. [Born: September 9, 1949]
[Known as the 1976 European, World and Olympic Champion. He's noted for combining ballet and modern dance influences into his skating.]
2002: Byron White, American lawyer, jurist, and professional football player. [Born: June 8, 1917]
[He served as an associate justice of the Supreme Court of the United States, from 1962 until 1993.]