On June 25, the following notable historical events related to Missouri have been recorded:

• 1824: The town of Hannibal, Missouri, was officially laid out. This date marks the beginning of Hannibal’s development, later famous as the hometown of Mark Twain and the inspiration for settings in his novels Tom Sawyer and Huckleberry Finn.
• 1864: During the Civil War, Missouri continued to experience guerrilla warfare. On or around June 25, Confederate bushwhackers, including those associated with William Quantrill, were active in raids across rural Missouri, contributing to the state’s ongoing turmoil.
• 1910: The Aero Club of St. Louis hosted one of the first major air shows in the United States, held at Forest Park. On June 25, aviation demonstrations drew large crowds, showcasing Missouri’s early involvement in the aviation industry.