1. On July 5, 1839, the first steamboat arrived in St. Joseph, Missouri, marking the beginning of the city's prominence as a transportation hub.

2. In 1875, the Missouri Pacific Railroad was chartered on July 5th, leading to the expansion of railroads throughout the state and beyond.

3. In 1948, Harry S. Truman, who was born in Missouri, signed into law the Women's Armed Services Integration Act, allowing women to serve in the Military on a permanent basis.

4. In 1993, the Great Flood of 1993 reached its peak on July 5th, causing devastating flooding throughout the state and across the Midwest.

5. July 5th is also recognized as National Bikini Day, as the modern bikini was first introduced on this day in 1946 by French engineer Louis Réard. While not specific to Missouri, many Missourians likely celebrated this occasion and enjoyed the summer weather in their own swimsuits.