On March 6, 1857, the US Supreme Court announced its landmark decision in Dred Scott v. Sanford, holding that blacks - slaves as well as free - were not and could never become citizens of the United States, and that the 1820 Missouri Compromise was unconstitutional.Learn more about the Dred Scott case from Washington University in St. Louis (the city where Dred Scott initially filed his suit for
On March 4, 1834, the town of York in the British colony of Canada was incorporated as the City of Toronto.Learn the history of Toronto from the city's official website.