1. In 1944, the Arkansas Post National Memorial was established, marking the site of the first European settlement in the lower Mississippi River Valley.

2. On October 25, 1966, the Ozark National Forest was officially dedicated by President Lyndon B. Johnson, becoming one of the largest protected forests in the southern United States.

3. In 2003, the Clinton Presidential Center opened in Little Rock, Arkansas, serving as a museum and library dedicated to the life and presidency of former President Bill Clinton.

4. On October 25, 1957, nine African American students known as the Little Rock Nine entered Little Rock Central High School, facing harassment and violence from white protesters opposed to school integration.

5. In 1916, the Arkansas state flag was adopted, featuring a diamond shape and a blue field symbolizing the state's diamonds and rivers, as well as a white star representing Arkansas's membership in the Confederacy during the Civil War.