On June 11, the following notable historical events related to Missouri have been recorded:
- 1804: The Lewis and Clark Expedition was in the St. Louis area on or around June 11, finalizing preparations for their journey up the Missouri River to explore the Louisiana Purchase. They were completing logistical arrangements and gathering final supplies, reinforcing Missouri’s role as the launch point for western exploration.
- 1820: Missouri’s constitutional convention, convened in St. Louis, continued drafting the state’s first constitution around June 11. This was a crucial step toward Missouri’s admission as a state in 1821, amid national debates over slavery tied to the Missouri Compromise.
- 1861: During the Civil War, Missouri was a hotbed of tension. On June 11, the St. Louis Conference took place, where Union General Nathaniel Lyon met with Confederate-aligned Governor Claiborne Jackson and militia leader Sterling Price. The talks failed, escalating tensions that led to Lyon’s capture of Jefferson City days later.
- 1876: The St. Louis-based Missouri Botanical Garden, founded by Henry Shaw, hosted a significant public exhibition around June 11, showcasing new plant species and horticultural innovations, reinforcing its status as a leading botanical research center.
- 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was underway, with June 11 featuring early international scientific exhibits and cultural performances, highlighting Missouri’s prominence as a global hub.
- 1964