1. In 1836, Arkansas became the 25th state in the United States on May 13. The state was named after the Arkansas River, which got its name from the Quapaw Native American tribe that lived along its banks.

2. On May 13, 1862, the Battle of Raymond took place during the American Civil War in Mississippi. Although it didn't happen in Arkansas, the battle is significant to the state's history because many soldiers from Arkansas fought on both sides of the conflict.

3. In 1933, the "Scottsboro Boys" were arrested in Alabama on May 13, accused of raping two white women on a train. While the incident didn't happen in Arkansas, it sparked heated debates across the country about race relations and the rights of the accused.

4. On May 13, 1936, Arkansas reached its highest recorded temperature of 120 degrees Fahrenheit in Ozark. The state is known for its hot summers, but this record-breaking heatwave was particularly brutal.

5. In 1985, the historic Terry Mansion in Little Rock caught fire and burned to the ground on May 13. The mansion was the former home of Governor David Terry and was listed on the National Register of Historic Places. Despite efforts to save the building, it was ultimately destroyed.