1. On April 4, 1968, civil rights leader Martin Luther King Jr. was assassinated in Memphis, Tennessee. King had a significant impact on Alabama and the civil rights movement, leading the Montgomery Bus Boycott in 1955 and the Selma to Montgomery March in 1965.

2. On April 4, 1865, Union forces under General James Wilson captured Tuscaloosa, Alabama during the Civil War. The city served as the state capital during the early years of the Confederacy and was an important industrial center.

3. In 1989, the Alabama legislature designated April 4 as "Elvis Presley Day" in honor of the legendary musician's contributions to music and popular culture. Presley performed many concerts in Alabama throughout his career and had a significant impact on the state's music scene.

4. On April 4, 1989, the Alabama Crimson Tide won the NCAA Men's Basketball Championship by defeating the Michigan Wolverines 92-87 in overtime. It was the first national championship for the Tide and one of the most memorable moments in Alabama sports history.

5. On April 4, 1907, the Birmingham Police Department was officially established. The department has a long and complex history, including the use of police dogs and other controversial tactics during the Civil Rights movement. Today, the department is responsible for ensuring public safety in one of Alabama's largest cities.