Westward Expansion By parisas1313 Apr 18, 1802 Louisiana Purchase Louisiana Purchase proposed Apr 30, 1803 Louisiana Purchase Louisiana Purcahse was finalized May 14, 1804 Lewis and Clark The Corps of Discovery start their voyage. Sep 23, 1806 Lewis and Clark The Corps of Discovery arrive in St. Louis after expedtion. Jun 18, 1812 War of 1812 War of 1812 begins Dec 24, 1814 War of 1812 War of 1812 ends
