1. Missouri became a state: February 6, 1820, was a significant day in Missouri history as it marked the day when Missouri officially became a state. This followed Missouri's admission to the Union after months of statehood debates in Congress.

2. The Battle of Springfield: On February 6, 1862, the Battle of Springfield was fought in Missouri during the Civil War. Union forces defeated Confederate troops, securing control of Springfield, driving the Confederate Army from Missouri, and strengthening Union dominance in the region.

3. Missouri River floods: February 6, 1938, saw numerous levee breaches along the Missouri River, leading to widespread flooding in Missouri and other states. The floods caused extensive property damage and loss of life, with many communities affected.

4. World War II: February 6, 1942, was the day when Missouri residents began to feel the impact of World War II. The United States officially entered the war on December 8, 1941, and Missouri played an important role in supporting the war effort.

5. NASA astronaut: February 6, 1962, saw Missouri native John Glenn become the first American to orbit the Earth. Glenn's achievement in the Mercury-Atlas 6 spacecraft made him a hero to many Americans and helped propel the nation's space program forward.