1. In 1937, Arkansas became the first state to establish a state park system. This system now includes 52 parks and museums throughout the state, providing recreational opportunities and preserving natural and cultural resources.

2. On August 12, 1862, the Battle of Lone Jack took place in Missouri just over the Arkansas state line. Many Arkansans fought on both sides of this Civil War battle, with Confederate forces ultimately being victorious.

3. The Central High School Crisis occurred on August 12, 1959 in Little Rock, Arkansas. Nine African American students attempted to integrate into Central High School, but were met with resistance from both the Arkansas National Guard and white segregationists. This event was a pivotal moment in the Civil Rights Movement.

4. In 1972, Arkansas became home to the William J. Clinton Presidential Library in Little Rock. The library contains the documents and artifacts of former President Bill Clinton's administration, as well as a museum dedicated to his life and career.

5. On August 12, 1992, R.A. "Bob" Leflar passed away. Leflar was a prominent legal scholar and professor at the University of Arkansas School of Law, authoring numerous influential books and articles on the subject. His legacy continues to have an impact on legal education and scholarship in Arkansas and beyond.