1204 – Baldwin IX, Count of Flanders is crowned as the first Emperor of the Latin Empire.

1568 – Mary, Queen of Scots, flees to England.

1770 – The 14-year-old Marie Antoinette marries 15-year-old Louis-Auguste, Dauphin de France, who later becomes king of France.

 Red_Dragon wrote:
1689
Japanese poet Matsuo Bashō leaves Edo on his epic 150-day journey to Honshu Island in Japan, which he writes about in the literary masterpiece "Oku no Hosomichi" (The Narrow Road to the Deep North)

1975
Tabei Junko of Japan, accompanied by Ang Tsering of Nepal, became the first woman to reach the summit of Mount Everest.

1770
Marie-Antoinette married the future King Louis XVI of France.

1888 – Nikola Tesla delivers a lecture describing the equipment which will allow efficient generation and use of alternating currents to transmit electric power over long distances.

1891 – The International Electrotechnical Exhibition opens in Frankfurt, Germany, featuring the world's first long-distance transmission of high-power, three-phase electric current (the most common form today).

1929 – In Hollywood, the first Academy Awards ceremony takes place.

1960 – Theodore Maiman operates the first optical laser (a ruby laser), at Hughes Research Laboratories in Malibu, California.

1988 – A report by the Surgeon General of the United States C. Everett Koop states that the addictive properties of nicotine are similar to those of heroin and cocaine.

1911 – In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.

1933 – All military aviation organizations within or under the control of the RLM of Germany are officially merged in a covert manner to form its Wehrmacht military's air arm, the Luftwaffe.

1940 – Richard and Maurice McDonald open the first McDonald's restaurant.

1948 – Following the expiration of The British Mandate for Palestine, the Kingdom of Egypt, Transjordan, Lebanon, Syria, Iraq and Saudi Arabia invade Israel, thus starting the 1948 Arab–Israeli War.

1957 – At Malden Island in the Pacific Ocean, Britain tests its first hydrogen bomb in Operation Grapple.

1551 – National University of San Marcos, the oldest university in the Americas, is founded in Lima, Peru.

2017 – The WannaCry ransomware attack impacts over 400,000 computers worldwide, targeting computers of the United Kingdom's National Health Services and Telefónica computers.

1973 – Citing government misconduct, Daniel Ellsberg's charges for his involvement in releasing the Pentagon Papers to The New York Times are dismissed.

1997 – Deep Blue, a chess-playing supercomputer, defeats Garry Kasparov in the last game of the rematch, becoming the first computer to beat a world-champion chess player in a classic match format.

1998 – India conducts three underground atomic tests in Pokhran.

330 – Constantine the Great dedicates the much-expanded and rebuilt city of Byzantium, changing its name to New Rome and declaring it the new capital of the Eastern Roman Empire (today: Istanbul, former Constantinople after his name). ~ (That same emperor, who ended the prosecution of all Christians. Under his reign, the 'canon' of texts comprising The Bible was compiled by bishops of the Catholic Church West & East.
Some believe, he "got rid of" the Christian dogma of reincarnation.  ~  MORE HERE!)

868 – A copy of the Diamond Sūtra is published, the earliest dated and printed book known.

1869 – The First transcontinental railroad, linking the eastern and western United States, is completed at Promontory Summit, Utah Territory with the golden spike.

1872 – Victoria Woodhull becomes the first woman nominated for President of the United States.

1908 – Mother's Day is observed for the first time in the United States, in Grafton, West Virginia.

1924 – J. Edgar Hoover is appointed first Director of the United States' Federal Bureau of Investigation (FBI), and remains so until his death in 1972.

1933 – Censorship: In Germany, the Nazis stage massive public book burnings.

1962 – Marvel Comics publishes the first issue of The Incredible Hulk.

1975 – Sony introduces the Betamax videocassette recorder.

1994 – Nelson Mandela is inaugurated as South Africa's first black president.

1974 – Watergate scandal: The United States House Committee on the Judiciary opens formal and public impeachment hearings against President Richard Nixon.

2020 – The COVID-19 recession causes the U.S. unemployment rate to hit 14.9 percent, its worst rate since the Great Depression.

1886 – Pharmacist John Pemberton first sells a carbonated beverage named "Coca-Cola" as a patent medicine.

1970 – The Beatles release their 12th and final studio album Let It Be.

1973 – A 71-day standoff between federal authorities and the American Indian Movement members occupying the Pine Ridge Reservation at Wounded Knee, South Dakota ends with the surrender of the militants.

1980 – The World Health Organization confirms the eradication of smallpox.

1824 – World premiere of Ludwig van Beethoven's Ninth Symphony in Vienna, Austria. The performance is conducted by Michael Umlauf under the composer's supervision.

1846 – The Cambridge Chronicle, America's oldest surviving weekly newspaper, is published for the first time in Cambridge, Massachusetts.

1895 – In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.

1946 – Tokyo Telecommunications Engineering (later renamed Sony) is founded.

2000 – Vladimir Putin is inaugurated as president of Russia.

1882 – The United States Congress passes the Chinese Exclusion Act.

1889 – The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.

1915 – Babe Ruth, then a pitcher for the Boston Red Sox, hits his first major league home run.

1935 – New Deal: Under the authority of the newly-enacted Federal Emergency Relief Administration, President Franklin D. Roosevelt issues Executive Order 7034 to create the Works Progress Administration.

1937 – Hindenburg disaster: The German zeppelin Hindenburg catches fire and is destroyed within a minute while attempting to dock at Lakehurst, New Jersey. Thirty-six people are killed.

1940 – John Steinbeck is awarded the Pulitzer Prize for his novel The Grapes of Wrath.

1941 – At California's March Field, Bob Hope performs his first USO show.

1949 – EDSAC, the first practical electronic digital stored-program computer, runs its first operation.

1994 – Elizabeth II of the United Kingdom and French President François Mitterrand officiate at the opening of the Channel Tunnel.

1998 – Kerry Wood strikes out 20 Houston Astros to tie the major league record held by Roger Clemens. He threw a one-hitter and did not walk a batter in his fifth career start.

1998 – Steve Jobs of Apple Inc. unveils the first iMac.

2004 – The final episode of the television sitcom Friends is aired.

1862 – Cinco de Mayo: Troops led by Ignacio Zaragoza halt a French invasion in the Battle of Puebla in Mexico.

1904 – Pitching against the Philadelphia Athletics at the Huntington Avenue Grounds, Cy Young of the Boston Americans throws the first perfect game in the modern era of baseball.

1912 – The first issue of the Bolshevik newspaper Pravda is published.

1981 – Bobby Sands dies in the Long Kesh prison hospital after 66 days of hunger-striking, aged 27.

2023 – The World Health Organization declares the end of the COVID-19 pandemic as a global health emergency.

 SeriousLee wrote:
I guess it need to jappen when I die one deh

but shot by the Polizei is different.

 Proclivities wrote:

Such a tragedy that didn't need to happen. 

1970

1776 – Rhode Island becomes the first American colony to renounce allegiance to King George III.

1871 – The National Association, the first professional baseball league, opens its first season in Fort Wayne, Indiana.

1927 – The Academy of Motion Picture Arts and Sciences is incorporated.

1953 – Ernest Hemingway wins the Pulitzer Prize for The Old Man and the Sea.

1959 – The 1st Annual Grammy Awards are held.

1961 – American civil rights movement: The "Freedom Riders" begin a bus trip through the South.

1970 – Vietnam War: Kent State shootings: The Ohio National Guard, sent to Kent State University after disturbances in the city of Kent the weekend before, opens fire killing four unarmed students and wounding nine others. The students were protesting the Cambodian Campaign of the United States and South Vietnam.

1972 – The Don't Make A Wave Committee, a fledgling environmental organization founded in Canada in 1971, officially changes its name to "Greenpeace Foundation".

1973 – The 108-story Sears Tower in Chicago is topped out at 1,451 feet (442 m) as the world's tallest building.