On July 1, the following notable historical events related to Missouri have been recorded:

• 1821: Missouri was officially admitted to the United States as the 24th state on August 10, 1821, but on July 1, preparations for statehood were in high gear. The state’s first constitution, drafted in St. Louis, was being finalized, marking a pivotal moment in Missouri’s transition from a territory to a state amid the Missouri Compromise debates.
• 1863: During the Civil War, Missouri saw continued guerrilla activity. While no specific battle is tied to July 1, this date falls within a period of raids by Confederate bushwhackers, such as those led by William Quantrill, particularly in western Missouri, disrupting Union control.
• 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was ongoing, with July 1 featuring prominent displays of industrial innovations and international exhibits. The fair reinforced St. Louis’s status as a global cultural and economic hub.