On September 8, the following notable historical events related to Missouri occurred:

• 1806: The Lewis and Clark Expedition, returning from their journey, was near present-day St. Charles, Missouri, on or around September 8, nearing the end of their exploration of the Louisiana Purchase, with St. Louis as their final destination.
• 1846: During the Mexican-American War, Missouri volunteers, including the First Missouri Mounted Volunteers led by Alexander Doniphan, were mustering in St. Louis around September 8, preparing for their campaign in the Southwest.
• 1863: During the Civil War, Confederate guerrilla activity persisted in Missouri. On or around September 8, bushwhackers raided Union outposts in Boone County, contributing to the state’s ongoing conflict.
• 1890: The St. Louis-based Anheuser-Busch brewery achieved a milestone around September 8 by expanding its bottling operations, strengthening Missouri’s role in the national brewing industry.
• 1925: The Missouri State Fair in Sedalia was in full swing around September 8, showcasing agricultural innovations and drawing thousands, reinforcing Missouri’s rural heritage.
• 1998: The St. Louis Cardinals played a historic game against the Chicago Cubs at Busch Stadium on September 8, when Mark McGwire hit his 62nd home run, breaking Roger Maris’s single-season record, cementing Missouri’s baseball legacy.