War of 1812 and Rebellion of 1837 By 000 Period: Jan 1, 1812 to Dec 31, 1839 War of 1812 and Rebellion of 1837 Timeline from the beginning of the War of 1812, to the Rebellion of 1837. Jun 18, 1812 War of 1812 begins. War of 1812 begins. Oct 13, 1812 Battle of Queenston Heights. Apr 27, 1813 Battle of York. Sep 10, 1813 Battle of Lake Erie. Aug 24, 1814 Burning of Washington. Feb 18, 1815 War of 1812 ends. Sep 5, 1837 Fils de Liberty (Sons of Liberty) organation is formed. Nov 1, 1837 Rebellion of Lower Canada begins. Dec 5, 1837 Martial Law is declared in Montreal. Apr 12, 1838 Rebel leaders Sameul Lount and Peter Mattews are hanged for treason in Toronto.