1016 - Danes led by Cnut defeat the Saxon forces of Edmund Ironside at the Battle of Assandun (Ashingdon), completing their conquest of England 1767 - Boundary between Maryland and Pennsylvania, the Mason–Dixon line, is agreed upon 1918 - NHL's Quebec Bulldogs are sold to Toronto businessman P. J. Quinn 1946 - First performance of Aaron Copland's Third Symphony by the Boston Symphony Orchestra led by Serge Koussevitzky, often called the "Great American Symphony" 1953 - WTVK TV channel 26 in Knoxville, TN (NBC) begins broadcasting 1954 - Hurricane Hazel becomes the most severe to ever hit the US, killing 195 in the US and Canada 1979 - Stage musical "Beatlemania" opens in London 2023 - Climate activist Greta Thunberg is arrested at a demonstration outside an oil conference in London More Historical Events »