On November 15, the following notable historical events related to Missouri occurred:

• 1806: The Lewis and Clark Expedition, having returned to St. Louis in late September, continued to be celebrated on or around November 15, with local festivities in St. Louis honoring their exploration of the Louisiana Purchase, reinforcing Missouri’s role as a western hub.
• 1856: During the “Bleeding Kansas” conflict, pro-slavery “Border Ruffians” from Missouri were active on or around November 15, crossing into Kansas to intimidate anti-slavery settlers, escalating violence and highlighting Missouri’s role in the slavery debate.
• 1861: During the Civil War, Missouri remained a battleground. On or around November 15, Union forces under General Henry W. Halleck, who replaced John C. Frémont, began reorganizing in St. Louis to strengthen Union control in the state.
• 1888: The Missouri Botanical Garden in St. Louis hosted a public exhibition around November 15, showcasing rare plant species and reinforcing its reputation as a leading botanical research center.
• 1929: The Great Depression deepened in Missouri. On or around November 15, businesses in Kansas City faced growing financial difficulties, reflecting the state’s economic challenges.
• 2004: The St. Louis Cardinals held a season-end fan appreciation event in St. Louis on or around November 15, following their World Series loss to the Boston Red Sox, honoring Albert Pujols and the team’s strong performance, reinforcing Missouri’s baseball legacy.