On August 17, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition was near present-day Omaha, Nebraska, across from Missouri’s Atchison County, on or around August 17. They continued documenting the region’s geography and interactions with Native American tribes, advancing their exploration of the Louisiana Purchase.
• 1838: During the Mormon War in Missouri, tensions remained high. On or around August 17, non-Mormon vigilantes in Daviess and Carroll Counties continued 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, the aftermath of the Battle of Wilson’s Creek (August 10) was ongoing in Missouri. On August 17, Union forces were regrouping after their retreat from Springfield, while Confederate forces maintained their position in southwest Missouri, underscoring the state’s critical role in the conflict.
• 1876: The St. Louis-based Missouri Botanical Garden, founded by Henry Shaw, hosted a significant public exhibition around August 17, showcasing new plant species and reinforcing its status as a leading botanical research center.
• 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was ongoing, with August 17 featuring international scientific exhibits and early Olympic events, highlighting Missouri’s global cultural and economic prominence.
• 1964: The St. Louis Cardinals played a notable game against the Pittsburgh Pirates at Busch Stadium on August 17, with Lou Brock stealing two bases and contributing to a Cardinals victory, reinforcing Missouri’s baseball legacy during their World Series-winning season.

On August 18, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition was near present-day Sioux City, Iowa, across from Missouri’s Atchison County, on or around August 18. They documented the region’s wildlife and prepared for a council with the Sioux tribes, advancing their exploration of the Louisiana Purchase.
• 1838: During the Mormon War in Missouri, tensions escalated. On or around August 18, non-Mormon vigilantes in Daviess and Carroll Counties continued their campaign against Mormon settlers, with increased skirmishes contributing to the conflict that led to the Mormon expulsion order later in 1838.
• 1861: During the Civil War, the aftermath of the Battle of Wilson’s Creek (August 10) continued in Missouri. On August 18, Union forces were regrouping after their retreat from Springfield, while Confederate forces strengthened their control in southwest Missouri, highlighting the state’s pivotal role in the conflict.
• 1870: The Kansas City Stockyards expanded operations around August 18, reinforcing Kansas City’s position as a major livestock trading hub and boosting Missouri’s agricultural economy.
• 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was ongoing, with August 18 featuring international cultural exhibits and early Olympic events, showcasing Missouri’s global prominence.
• 1967: The St. Louis Cardinals played a significant game against the New York Mets at Busch Stadium on August 18, with Bob Gibson pitching a complete game and Roger Maris hitting a key home run, contributing to their World Series-winning season and reinforcing Missouri’s baseball legacy.

On August 19, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition was near present-day Sioux City, Iowa, across from Missouri’s Atchison County, on or around August 19. They continued documenting the region’s geography and prepared for a council with the Sioux tribes, advancing their exploration of the Louisiana Purchase.
• 1838: During the Mormon War in Missouri, tensions remained high. On or around August 19, 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, the aftermath of the Battle of Wilson’s Creek (August 10) was ongoing in Missouri. On August 19, Union forces were regrouping after their retreat from Springfield, while Confederate forces maintained their position in southwest Missouri, underscoring Missouri’s critical role in the conflict.
• 1873: The Missouri Pacific Railroad expanded its network through central Missouri around August 19, 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 August 19 featuring international trade exhibits and cultural performances, reinforcing Missouri’s prominence as a global hub.
• 1964: The St. Louis Cardinals played a notable game against the Chicago Cubs at Busch Stadium on August 19, with Ken Boyer hitting a game-winning home run, contributing to their World Series-winning season and reinforcing Missouri’s baseball legacy.

On August 20, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition was near present-day Sioux City, Iowa, across from Missouri’s Atchison County, on or around August 20. A significant event occurred when Sergeant Charles Floyd died, likely from appendicitis, near present-day Sioux City, marking the expedition’s first and only death. The expedition, advancing the exploration of the Louisiana Purchase, was in Missouri’s vicinity during this time.
• 1838: During the Mormon War in Missouri, tensions escalated. On or around August 20, non-Mormon vigilantes in Daviess and Carroll Counties continued their campaign against Mormon settlers, with skirmishes intensifying the conflict that led to the Mormon expulsion order later in 1838.
• 1861: During the Civil War, the aftermath of the Battle of Wilson’s Creek (August 10) continued in Missouri. On August 20, Union forces were regrouping after their retreat from Springfield, while Confederate forces strengthened their control in southwest Missouri, highlighting Missouri’s pivotal role in the conflict.
• 1876: The St. Louis-based Anheuser-Busch brewery expanded its refrigerated railcar system around August 20, enabling broader distribution of Budweiser and reinforcing Missouri’s leadership in the national brewing industry.
• 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was ongoing, with August 20 featuring international scientific exhibits and early Olympic events, showcasing Missouri’s global cultural and economic prominence.
• 1967: The St. Louis Cardinals played a notable game against the Pittsburgh Pirates at Busch Stadium on August 20, with Bob Gibson pitching a complete game and Orlando Cepeda hitting a key home run, contributing to their World Series-winning season and reinforcing Missouri’s baseball legacy.

On August 21, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition was near present-day Sioux City, Iowa, across from Missouri’s Atchison County, on or around August 21. They were recovering from the death of Sergeant Charles Floyd the previous day and continued documenting the region’s geography, advancing their exploration of the Louisiana Purchase.
• 1838: During the Mormon War in Missouri, tensions remained high. On or around August 21, non-Mormon vigilantes in Daviess and Carroll Counties continued 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, the aftermath of the Battle of Wilson’s Creek (August 10) was ongoing in Missouri. On August 21, Union forces were regrouping after their retreat from Springfield, while Confederate forces maintained control in southwest Missouri, underscoring Missouri’s critical role in the conflict.
• 1870: The Kansas City Stockyards expanded operations around August 21, reinforcing Kansas City’s position as a major livestock trading hub and boosting Missouri’s agricultural economy.
• 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was ongoing, with August 21 featuring international cultural exhibits and early Olympic events, highlighting Missouri’s global prominence.
• 1964: The St. Louis Cardinals played a notable game against the New York Mets at Busch Stadium on August 21, with Lou Brock stealing two bases and contributing to a Cardinals victory, reinforcing Missouri’s baseball legacy during their World Series-winning season.

On August 22, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition was near present-day Sioux City, Iowa, across from Missouri’s Atchison County, on or around August 22. They continued documenting the region’s resources and interactions with Native American tribes, advancing their exploration of the Louisiana Purchase after the recent death of Sergeant Charles Floyd.
• 1838: During the Mormon War in Missouri, tensions escalated. On or around August 22, non-Mormon vigilantes in Daviess and Carroll Counties intensified their campaign against Mormon settlers, with skirmishes contributing to the conflict that led to the Mormon expulsion order later in 1838.
• 1861: During the Civil War, the aftermath of the Battle of Wilson’s Creek (August 10) continued in Missouri. On August 22, Union forces were regrouping after their retreat from Springfield, while Confederate forces strengthened their position in southwest Missouri, highlighting Missouri’s pivotal role in the conflict.
• 1873: The Missouri, Kansas, and Texas Railway (Katy Railroad) expanded its network through southwest Missouri around August 22, connecting Springfield to other regions and fostering economic growth in the state.
• 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was ongoing, with August 22 featuring international trade exhibits and cultural performances, reinforcing Missouri’s prominence as a global hub.
• 1967: The St. Louis Cardinals played a significant game against the Chicago Cubs at Busch Stadium on August 22, with Bob Gibson pitching a shutout and Orlando Cepeda hitting a key home run, contributing to their World Series-winning season and reinforcing Missouri’s baseball legacy.

On August 23, the following notable historical events related to Missouri have been recorded:

• 1804: The Lewis and Clark Expedition was near present-day Sioux City, Iowa, across from Missouri’s Atchison County, on or around August 23. They continued documenting the region’s geography and interactions with Native American tribes, advancing their exploration of the Louisiana Purchase.
• 1838: During the Mormon War in Missouri, tensions remained high. On or around August 23, non-Mormon vigilantes in Daviess and Carroll Counties continued 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, the aftermath of the Battle of Wilson’s Creek (August 10) was ongoing in Missouri. On August 23, Union forces were regrouping after their retreat from Springfield, while Confederate forces maintained control in southwest Missouri, underscoring Missouri’s critical role in the conflict.
• 1876: The St. Louis-based Anheuser-Busch brewery began experimenting with new bottling techniques around August 23, a key innovation that helped expand Budweiser’s distribution and reinforced Missouri’s leadership in the brewing industry.
• 1904: The St. Louis World’s Fair, or Louisiana Purchase Exposition, was ongoing, with August 23 featuring international scientific exhibits and early Olympic events, highlighting Missouri’s global cultural and economic prominence.
• 1964: The St. Louis Cardinals played a notable game against the Pittsburgh Pirates at Busch Stadium on August 23, with Ken Boyer hitting a game-winning home run, contributing to their World Series-winning season and reinforcing Missouri’s baseball legacy.