Daniel Boone Passes Away Near Defiance: September 26, 1820
Daniel Boone died at his home on the Femme Osage near Defiance.
Hernando DeSoto Crosses Into Missouri: September 6, 1541
Hernando DeSoto’s party of exploration entered Missouri at what is now Ste. Genevieve. They made camp that night near present day Farmington.
Missouri Territory is Established: June 4, 1812
Missouri was organized as a U.S. Territory. The name was changed from "Territory of Louisiana" to "Territory of Missouri."
The Louisiana Purchase Treaty is Signed: April 30, 1803
The treaty that authorized the Louisiana Purchase was signed on this date in Paris.
Meriwether Lewis Arrives Back in St. Louis as Governor: March 8, 1808
The hero of the Corps of Discovery arrived to take up his position as governor on this date in 1808, almost a full year after he'd been appointed to the role.
Treaty of Fontainebleau
On November 13, 1762, Spain gained the Louisiana Territory from France in the Treaty of Fontainebleau.