1. On April 15, 1861, Mississippi became the second state to secede from the Union, joining the Confederacy at the start of the Civil War. The state played a significant role in the conflict, with many major battles and campaigns taking place on its soil.

2. April 15, 1915 saw the opening of the Mississippi State Capitol building in Jackson. Designed by James R. Hills and completed in just over two years, the grand building is a symbol of the state's government and history.

3. Not all events on April 15 in Mississippi history were positive, as evidenced by the infamous Yazoo River Flood of 1979. The disaster caused severe flooding in multiple states, with Mississippi bearing the brunt of the damage. Thousands of people were displaced, and the region suffered long-lasting economic and environmental consequences.

4. The Mississippi Braves minor league baseball team played its first game on April 15, 2005, at Trustmark Park in Pearl. Since then, the Braves have become a beloved part of the state's sports scene and have helped introduce talented young players to the national stage.

5. In more recent history, April 15, 2019, was the date of the devastating tornado outbreak that struck Mississippi and other southern states. The event caused numerous deaths, injuries, and property damage, highlighting the unpredictable and dangerous nature of severe weather in the region.