On this date:
In 1609, Galileo Galilei demonstrated his new telescope to a group of officials atop the Campanile (kahm-pah-NEE’-lay) in Venice.
In 1831, Nat Turner led a violent slave rebellion in Virginia resulting in the deaths of at least 55 white people. (He was later executed.)
In 1858, the first of seven debates between Illinois senatorial contenders Abraham Lincoln and Stephen Douglas took place.
In 1878, the American Bar Association was founded in Saratoga, N.Y.