On September 5, the following notable historical events related to Missouri have been recorded:

• 1819: On or around September 5, the Missouri Territory was preparing for statehood, with settlers in St. Charles organizing petitions to Congress to support Missouri’s admission as a state, a process that culminated in the Missouri Compromise of 1820.
• 1856: During the “Bleeding Kansas” conflict, pro-slavery “Border Ruffians” from Missouri were active on or around September 5, crossing into Kansas to influence territorial politics, escalating violence in the region and highlighting Missouri’s role in the national slavery debate.
• 1882: The St. Louis Agricultural and Mechanical Fair opened its annual event around September 5, showcasing Missouri’s agricultural innovations, livestock, and machinery, drawing thousands to St. Louis and reinforcing the state’s agricultural prominence.
• 1917: During World War I, Missouri’s Camp Funston, near Kansas City, was training soldiers around September 5 for deployment to Europe. This marked Missouri’s significant contribution to the U.S. war effort, with thousands of troops passing through the state.
• 1935: The Great Depression impacted Missouri heavily, and on or around September 5, the Works Progress Administration (WPA) began funding infrastructure projects in St. Louis, including road improvements, providing jobs and boosting the local economy.
• 2004: The St. Louis Cardinals played a notable game against the Los Angeles Dodgers at Busch Stadium on September 5, with Albert Pujols hitting a walk-off home run, contributing to their strong season and reinforcing Missouri’s baseball legacy.

On September 6, the following notable historical events related to Missouri have been recorded.

• 1826: On or around September 6, the town of Jefferson City was officially designated as Missouri’s state capital, replacing St. Charles. This decision solidified Jefferson City’s role in Missouri’s political history.
• 1848: The steamboat Missouri sank near St. Louis on or around September 6 due to a boiler explosion, killing several passengers and highlighting the dangers of river travel, a key mode of transportation in Missouri at the time.
• 1863: During the Civil War, Confederate guerrilla leader William Quantrill was active in Missouri. On or around September 6, his band conducted raids in western Missouri, targeting Union supporters and contributing to the state’s ongoing turmoil.
• 1899: The St. Louis Streetcar Strike reached a peak around September 6, with workers clashing with authorities over wages and conditions. The strike disrupted transportation in St. Louis and underscored Missouri’s early labor movement struggles.
• 1927: The Missouri State Highway Department began construction on Route 66 around September 6, with segments in Missouri connecting St. Louis to Joplin. This iconic road later became a symbol of American culture and boosted Missouri’s tourism.
• 1985: On September 6, the Kansas City Royals played a significant game against the Milwaukee Brewers at Royals Stadium, with George Brett hitting a key home run, contributing to their World Series-winning season and reinforcing Missouri’s baseball legacy.

On September 7, the following notable historical events related to Missouri occurred:

• 1812: During the War of 1812, Fort Madison in Missouri Territory (near present-day Clark County) faced attacks from Native American tribes allied with the British on or around September 7, highlighting Missouri’s frontier role.
• 1857: The St. Louis Agricultural and Mechanical Fair opened around September 7, showcasing Missouri’s farming innovations and drawing large crowds to the city.
• 1864: Confederate guerrilla raids, led by figures like William Quantrill, intensified in Missouri on or around September 7, targeting Union outposts in central Missouri during the Civil War.
• 1888: The Missouri Botanical Garden in St. Louis hosted a major plant exhibition around September 7, displaying rare species and cementing its status as a research hub.
• 1930: The Kansas City Star published an exposé on or around September 7, detailing corruption in the Pendergast political machine, exposing Missouri’s political challenges.
• 2001: The St. Louis Cardinals played a key game against the San Diego Padres at Busch Stadium on September 7, with Albert Pujols hitting a home run, contributing to their strong season.

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.

On September 9, the following notable historical events related to Missouri occurred:

• 1806: The Lewis and Clark Expedition, returning from their exploration of the Louisiana Purchase, was near present-day St. Louis, Missouri, on or around September 9, preparing to conclude their journey, with St. Louis as their final stop.
• 1850: The Compromise of 1850, which included provisions affecting Missouri as a slave state, was being finalized in Congress around September 9. Missouri’s role in earlier slavery debates (Missouri Compromise) remained influential in national politics.
• 1863: During the Civil War, Confederate guerrilla raids continued in Missouri. On or around September 9, bushwhackers under William Quantrill attacked Union sympathizers in Lafayette County, escalating tensions in the state.
• 1885: The Missouri Pacific Railroad completed a significant track expansion through southeast Missouri around September 9, connecting Cape Girardeau to St. Louis and boosting regional commerce.
• 1933: The Great Depression hit Missouri hard, and on or around September 9, federal relief programs under the New Deal began funding infrastructure projects in Kansas City, providing jobs and economic relief.
• 2004: The St. Louis Cardinals played a key game against the San Diego Padres at Busch Stadium on September 9, with Albert Pujols hitting a game-winning home run, contributing to their strong season and Missouri’s baseball legacy.

On September 10, the following notable historical events related to Missouri occurred:

• 1806: The Lewis and Clark Expedition, nearing the end of their journey, was in the St. Louis area on or around September 10, preparing to return to the city after exploring the Louisiana Purchase, marking Missouri’s role as their base.
• 1847: During the Mexican-American War, Missouri’s Doniphan’s Expedition, led by Colonel Alexander Doniphan, was celebrated in St. Louis around September 10 upon their return, having marched over 5,000 miles through the Southwest.
• 1861: During the Civil War, the First Battle of Lexington began on or around September 10 in Missouri. Confederate forces under Sterling Price besieged Union troops in Lexington, a significant early conflict in the state.
• 1897: The St. Louis-based Missouri Botanical Garden hosted a major orchid exhibition around September 10, showcasing rare species and reinforcing its reputation as a global botanical research center.
• 1920: The Kansas City Stockyards set a record for livestock processing around September 10, underscoring Kansas City’s dominance as a national agricultural hub and boosting Missouri’s economy.
• 1998: The St. Louis Cardinals played a notable game against the Chicago Cubs at Busch Stadium on September 10, with Mark McGwire hitting his 63rd home run of the season, furthering his record-breaking campaign and Missouri’s baseball legacy.

On September 11, the following notable historical events related to Missouri occurred:

• 1806: The Lewis and Clark Expedition was in the St. Louis area on or around September 11, nearing the conclusion of their exploration of the Louisiana Purchase, with St. Louis serving as their final destination.
• 1857: The Mountain Meadows Massacre, involving Missouri-connected Mormon militia, occurred on September 11 in Utah. While not in Missouri, the event tied back to tensions from the Missouri Mormon War (1838), influencing the state’s historical narrative.
• 1861: During the Civil War, the First Battle of Lexington was ongoing in Missouri. On or around September 11, Confederate forces under Sterling Price continued their advance on Lexington, besieging Union troops in a key early conflict.
• 1883: The Missouri Pacific Railroad expanded its network through southwest Missouri around September 11, connecting Springfield to other regions and boosting the state’s economic infrastructure.
• 1939: The Great Depression lingered in Missouri, and on or around September 11, federal New Deal programs funded the construction of public buildings in St. Louis, providing jobs and stimulating the local economy.
• 2001: The September 11 terrorist attacks had a profound impact on Missouri. St. Louis and Kansas City held vigils, and Missouri National Guard units were mobilized for security, reflecting the state’s response to the national tragedy.