1609 - Galileo Galilei demonstrates his first telescope to Venetian lawmakers.
1894 - Shibasaburo Kitasato discovers the infectious agent of the bubonic plague and publishes his findings in The Lancet.
1981 - Voyager 2 spacecraft makes its closest approach to Saturn
1989 - Voyager 2…
1963 - Vostok 6 Mission, Cosmonaut Valentina Tereshkova becomes the first woman in space.
1591 - Joseph Solomon Delmedigo, Italian physician, mathematician, and music theorist
1633 - Jean de ThÃ©venot, French traveler and scientist
1801 - Julius PlÃ¼cker, German mathematician and…
1623 - Blaise Pascal, French mathematician and philosopher
1846 - Antonio Abetti, Italian astronomer
1897 - Cyril Norman Hinshelwood, English chemist, Nobel laureate
1906 - Ernst Boris Chain, German-born biochemist, Nobel laureate
1910 - Paul Flory, American chemist, Nobel laureate
1969 - The first Internet connection was created when network control protocol packets were sent from the data port of one IMP to another
1436 - Regiomontanus, German mathematician
1519 - Andrea Cesalpino, Italian philosopher, physician, and botanist
1580 - Godefroy Wendelin, Flemish…