1. On August 12, 1964, three civil rights workers - James Chaney, Andrew Goodman, and Michael Schwerner - were arrested by Mississippi police and then later released into the hands of the Ku Klux Klan, who murdered them. This event, known as the "Mississippi Burning" incident, had a significant impact on the civil rights movement and led to increased attention on the ongoing battle for racial equality in America.

2. The city of Biloxi, Mississippi was founded on August 12, 1699 by French explorer Pierre Le Moyne d'Iberville. The city has a rich history, with a long-standing reputation as a popular tourist destination and one of the largest fishing ports in the United States.

3. On August 12, 1776, Spanish forces under the command of Bernardo de Galvez captured the British garrison at Fort Charlotte in modern-day Mobile, Alabama. This victory provided a critical boost to the American Revolution, as it gave the fledgling colony control over the vital Gulf Coast region.

4. Elvis Presley performed at the Mississippi-Alabama Fair and Dairy Show in Tupelo, Mississippi on August 12, 1956. This concert was a homecoming for Presley, who grew up in Tupelo, and helped to solidify his status as a rock and roll icon.

5. The Mississippi River Flood of 1927, one of the worst natural disasters in American history, began on August 12 of that year. The flood devastated large parts of Mississippi, Arkansas, and Louisiana, leading to the displacement of hundreds of thousands of people and causing extensive damage to crops and property.