Juan Ventura Moralis reveals that Spain intends to revoke the American "right of deposit" at New Orleans. Most historians believe that the revocation came because of American abuses of the Pinckney Treaty.
Robert E. Lee and JEB Stuart plan an attack against John Brown and his raiders at Harpers Ferry. At 6:30 am, Stuart signals Marine Lieutenant Israel Green who storms the firehouse holding the raiders and their hostages. Five of Brown's Raiders escape. The rest are caught or killed.