1. On September 4, 1957, the "Little Rock Nine" entered Central High School, an all-white high school in Little Rock, Arkansas. This event marked a turning point in the desegregation of public schools in the United States, as the students faced immense opposition and hostility from white students, parents, and community members.

2. In 1972, the Arkansas Razorbacks football team played in their first game as a member of the Southwest Conference. The team went on to win the conference championship that year, and would go on to become one of the most successful college football programs in the country.

3. On September 4, 2009, former Arkansas governor Mike Huckabee made controversial remarks about President Obama's childhood in Kenya during a speech at the Southern Republican Leadership Conference. Huckabee later clarified that he misspoke and meant to say Indonesia, where Obama spent part of his childhood.

4. The town of Hazen, Arkansas was incorporated on September 4, 1884. Located in Prairie County, Hazen was founded as a railroad town and later became known for its agriculture and timber industries.

5. In 1927, the Arkansas State Hospital for Nervous Diseases (now known as the Arkansas State Hospital) opened in Little Rock. The hospital was established to provide care for patients with mental illnesses, and has since expanded to include treatment for substance abuse and other behavioral health issues.