1. Freedom Day: June 12, 1963, is remembered as "Freedom Day" in Mississippi because it marked the first large-scale demonstration for civil rights in the state. Over 200,000 people participated in the protest, which was organized by civil rights activists Medgar Evers and Aaron Henry.

2. James Meredith: On June 12, 1966, James Meredith, the first African American to attend the University of Mississippi, was shot multiple times while on a civil rights march in Mississippi. The shooting shocked the nation and led to increased efforts to protect the rights of African Americans in the state.

3. Voting Rights: On June 12, 1964, the Civil Rights Act was passed by Congress, which included provisions protecting voting rights for African Americans. The act was a major victory for civil rights activists who had been working for decades to secure equal voting rights for minorities.

4. Apollo 10: On June 12, 1969, NASA's Apollo 10 mission successfully completed its mission to orbit the moon and test the components necessary for a future lunar landing. The mission was a critical step in the eventual success of the Apollo 11 mission, which landed on the moon just a few weeks later.

5. Hurricane Katrina: On June 12, 2005, Hurricane Katrina began to form in the Gulf of Mexico, setting off a chain of events that would devastate the Gulf Coast region of the United States. The hurricane caused over 1,800 deaths and over $100 billion in damages, making it one of the costliest natural disasters in American history.