Lazy8 wrote:

Fair enough. Wiki isn't perfect.

 Red_Dragon wrote:
Correction: it was for the purposes of apportioning representation in Congress, not taxation.

"Indians not taxed" weren't counted at all toward representation.

1783 – Three-Fifths Compromise: The first instance of black slaves in the United States of America being counted as three-fifths of persons (for the purpose of taxation), in a resolution of the Congress of the Confederation. This was later adopted in the 1787 Constitution.

2014 – NASA's Kepler space telescope confirms the discovery of the first Earth-size planet in the habitable zone of another star.

1943 – Albert Hofmann accidentally discovers the hallucinogenic effects of the research drug LSD. He intentionally takes the drug three days later on April 19.

1952 – First flight of the Boeing B-52 Stratofortress.

1947 – Jackie Robinson debuts for the Brooklyn Dodgers, breaking baseball's color line.

1923 – Insulin becomes generally available for use by people with diabetes.

2023 – The Jupiter Icy Moons Explorer (JUICE) is launched by the European Space Agency.

2003 – The Human Genome Project is completed with 99% of the human genome sequenced to an accuracy of 99.99%.

1894 – The first ever commercial motion picture house opens in New York City, United States. It uses ten Kinetoscopes, devices for peep-show viewing of films.

1865 – U.S. President Abraham Lincoln is shot in Ford's Theatre by John Wilkes Booth; Lincoln dies the following day.

1775 – The Society for the Relief of Free Negroes Unlawfully Held in Bondage, the first abolition society in North America, is organized in Philadelphia by Benjamin Franklin and Benjamin Rush.

1561 – A celestial phenomenon is reported over Nuremberg, described as an aerial battle.

1953 – CIA director Allen Dulles launches the mind-control program Project MKUltra.

1999 – United States President Bill Clinton is cited for contempt of court for giving "intentionally false statements" in a civil lawsuit; he is later fined and disbarred.

1970 – Soviet submarine K-8, carrying four nuclear torpedoes, sinks in the Bay of Biscay four days after a fire on board.

1961 – Space Race: The Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first crewed orbital flight, Vostok 1.

1955 – The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.

1937 – Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.