1. On September 4, 1957, the first day of school was a historic day for the state of Mississippi. The governor of the state, Ross Barnett, attempted to block the enrollment of James Meredith, a black student, to the University of Mississippi. The United States government intervened, and Meredith was eventually allowed to attend the university, becoming the first African American to do so.

2. In 1924, on September 4, the first low-level, nocturnal cloud seeding experiment took place in Mississippi. The experiment, which involved the dropping of silver iodide crystals from an airplane, was conducted by Walter Orr Roberts, a scientist from the National Bureau of Standards. The experiment aimed to produce rain by encouraging the formation of cloud droplets.

3. On September 4, 1862, the city of Corinth, Mississippi was the site of a major Civil War battle. The Battle of Corinth saw Confederate forces attempt to capture the city from Union forces, but ultimately failed to do so. After the battle, Corinth remained under Union control for the remainder of the war.

4. On September 4, 1931, Gulfport, Mississippi was hit by a powerful hurricane that caused significant damage to the city. The hurricane was a Category 4 storm and reportedly caused 23 deaths in the area. Many structures were destroyed, and the city had to be rebuilt in the aftermath of the storm.

5. On September 4, 1962, the Mississippi State Sovereignty Commission was disbanded. The commission was established in 1956 by the Mississippi State Legislature in order to maintain segregation and suppress civil rights activity. The commission was highly controversial and was eventually disbanded due to increasing pressure from civil rights activists and the federal government.