1. On April 20, 1934, the infamous outlaw duo Bonnie Parker and Clyde Barrow committed a robbery in Lamar County, Mississippi. The pair murdered two police officers during the incident, and the ambush that ultimately led to their deaths took place just two years later in Louisiana.

2. The first-ever Earth Day celebration was held on April 20, 1970, and Mississippi was not exempt from the festivities. Events were held across the state to promote environmental activism and conservation efforts.

3. On April 20, 2010, the Deepwater Horizon rig exploded off the coast of Louisiana, causing the largest oil spill in U.S. history. The spill had a devastating impact on the Mississippi Gulf Coast's economy and environment.

4. Civil rights activist James Meredith was shot on April 20, 1963, while participating in the "March Against Fear" in Mississippi. The shooting sparked outrage and a renewed commitment to the civil rights struggle in the state.

5. On April 20, 2005, the Mississippi House of Representatives voted to retire the state flag, which featured the Confederate battle emblem. The move was controversial and followed years of debate over the symbolism of the flag in representing Mississippi's history and identity.