1. Louisiana celebrated its first Constitution Day on August 10, 1974. This day marks the adoption of the current state constitution that replaced the previous version that had been in place since 1921.

2. On August 10, 1862, during the American Civil War, the Union Army captured Baton Rouge, the capital of Louisiana, in a battle that lasted for about three and a half hours. This victory gave the Union control of the Mississippi River and helped pave the way for the eventual defeat of the Confederates.

3. Another significant event that occurred on August 10, 1965, was the opening of the Louisiana Superdome in New Orleans. This massive stadium, which could seat up to 75,000 people, became the home of the NFL's New Orleans Saints and the site of several high-profile events, including seven Super Bowls.

4. On August 10, 2005, Hurricane Katrina formed over the Bahamas, eventually making landfall in Louisiana, causing catastrophic damage due to massive flooding and high winds. Katrina had a lasting impact on Louisiana, with around 80% of New Orleans being flooded, and billions of dollars in damages.

5. Louisiana's first black lieutenant governor, Jimmy Fitzmorris, was born on August 10, 1921, in New Orleans. Fitzmorris served as lieutenant governor under Governor Edwin Edwards from 1972 to 1980 and became known for his work on economic development, tourism, and transportation projects in the state.