1810
- Third national census records 7,239,881 people
- John Jacob Astor founds the Pacific Fur Company. In 1811, this company establishes a trading post at Astoria at the mouth of the Oregon River. Astor loses this post during the War of 1812.
- 7 November. Battle of Tippecanoe at which William Henry Harrison and his troops engage Shawnee and Creek forces led by The Prophet. Tecumseh has earlier sought allies among the Creek Indian tribes.