1. On March 3, 1865, Confederate General William Henry Jackson surrendered his troops to Union General William T. Sherman in Meridian, Mississippi. This marked the end of the Meridian Campaign and a major victory for the Union army in the Civil War.

2. On March 3, 1923, Mississippi State University (then known as Mississippi A&M College) became the first college in the United States to award degrees in poultry husbandry. This marked a significant development in the field of agriculture and helped solidify Mississippi's reputation as a leading producer of poultry products.

3. On March 3, 1955, the Mississippi Senate voted to officially recognize the singing of "Dixie" as the state song. The controversial song, which has been associated with the Confederacy and racially charged issues, continues to be a topic of debate in Mississippi and other parts of the United States.

4. On March 3, 1960, African American students at Tougaloo College in Jackson, Mississippi held a sit-in at a segregated lunch counter at a Woolworth's store in downtown Jackson. This marked one of the earliest instances of nonviolent direct action in the civil rights movement and helped to spark similar protests across the country.

5. On March 3, 2016, the city of Jackson, Mississippi passed an ordinance prohibiting discrimination based on sexual orientation and gender identity. This marked a significant step forward for LGBTQ+ rights in the state and helped to set a precedent for other cities and municipalities to follow.