The following events occurred in the 1810s:
- General James Wilkinson is court-martialed for his role in the Burr conspiracy. He orders his clerk to forge a letter from General Gilbert Russell, dated two years prior, attesting that Meriwether Lewis was in a deranged and suicidal state during the final weeks before his "suicide."
- The official account of the Corps of Discovery's expedition, less several of Lewis' missing journals, is published.
- Angus MacDowell writes in his diary about a potlatch ceremony he witnessed among a Native American tribe in the Pacific Northwest.