1787: Delegates gather in Philadelphia to draw up the Constitution of the United States

1796: English country doctor Edward Jenner administers his revolutionary cowpox-based vaccine for smallpox in Berkeley, Gloucestershire

1804: Meriwether Lewis and William Clark’s expedition sets out from St. Louis for the Pacific Coast, commissioned by Thomas Jefferson

1853: Land surveyor, newspaper publisher and inventor Gail Borden patents his process for condensed milk
David Ben-Gurion, who became Israel’s first prime minister shortly after, declares independence beneath a picture of Theodor HerzlIsraeli Declaration of Independence

1948: David Ben-Gurion declares Israel independent from British administration, Golda Meir one of the signatories

1955: Warsaw Pact is signed by the Soviet Union, Albania, Bulgaria, Czechoslovakia, East Germany, Hungary, Poland and Romania

2024: Google unveils new generative AI features at its annual conference, forcing users to view AI Overviews at the top of search results despite them being factually incorrect 60% of the time

Source: Onthisday.com