At the insistence of Governor Claiborne Fox Jackson, General Sterling Price, Nathaniel Lyon, and Frank Blair meet at the Planter's House Hotel in St. Louis to negotiate a peaceful settlement of Missouri's status during the secession crisis.
Brigadier General William S. Harney, commander of the Department of the West, agrees to a truce with Sterling Price, commander of the Missouri State Guard, to preserve peace in Missouri during the secession crisis.
Marking the initial struggle for the state of Missouri, federal forces under command of General Nathaniel Lyon seize the Missouri Capitol at Jefferson City.
Captain Nathaniel Lyon, who will remain loyal to the Union and fight several early battles for control of Missouri, arrives to take command of the St. Louis Arsenal.
