1796: English physician Edward Jenner gives the first successful smallpox vaccination.
1804: Explorer William Clark sets off from St. Louis, Missouri.
1897: Guglielmo Marconi sends the first communication by wireless telegraph.
1940: Holland surrenders to Germany.
1948: Prime Minister David Ben-Gurion establishes the State of Israel.
1961: A bus carrying black and white civil rights activists is bombed and burned in Alabama.
1973: The U.S. space station Skylab is launched.
1991: In South Africa, Winnie Mandela is sentenced to six years in prison for her part in the kidnapping and beating of three black youths and the death of a fourth.
Source: HistoryNet.com