1800-1876 By Ghart4403 1803 Louisiana Purchase https://www.history.com/topics/westward-expansion/louisiana-purchase 1804 Lewis and Clark expedition https://www.britannica.com/event/Lewis-and-Clark-Expedition 1812 War of 1812 https://www.history.com/topics/war-of-1812/war-of-1812 1820 Texas declares Independence https://www.history.com/this-day-in-history/texas-declares-independence 1846 Mexican War https://www.history.com/topics/mexican-american-war/mexican-american-war 1849 Gold Rush https://www.history.com/topics/westward-expansion/gold-rush-of-1849 1860 Abraham Lincoln elected president of the United States https://www.history.com/this-day-in-history/abraham-lincoln-elected-president
