On September 2, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition was near present-day Yankton, South Dakota, across from Missouri’s Atchison County, on or around September 2. They continued their council with the Yankton Sioux, documenting tribal customs and the region’s resources, advancing their exploration of the Louisiana Purchase.
• 1838: During the Mormon War in Missouri, tensions remained high. On or around September 2, non-Mormon vigilantes in Daviess and Carroll Counties intensified their campaign against Mormon settlers, with skirmishes escalating the conflict that led to the Mormon expulsion order later in 1838.
• 1861: During the Civil War, Missouri was a hotbed of conflict. On September 2, Union forces were regrouping after the Battle of Wilson’s Creek, while Confederate forces under Sterling Price began advancing toward Lexington, Missouri, setting the stage for the First Battle of Lexington later that month.
• 1873: The Missouri Pacific Railroad expanded its network through central Missouri around September 2, completing a key line connecting Jefferson City to other regions, boosting the state’s transportation and economic infrastructure.
• 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was ongoing, with September 2 featuring international trade exhibits and cultural performances, reinforcing Missouri’s prominence as a global hub.
• 1967: The St. Louis Cardinals played a notable game against the Pittsburgh Pirates at Busch Stadium on September 2, with Bob Gibson pitching a shutout and Orlando Cepeda hitting a game-winning home run, contributing to their World Series-winning season and reinforcing Missouri’s baseball legacy.