1. On April 20, 1926, the Little Rock Nine member Carlotta Walls LaNier was born in Little Rock, Arkansas. She was one of the nine African-American students who enrolled at Little Rock Central High School in 1957, amid intense racial tensions and violence.

2. April 20, 1871, marks the birth of George Donaghey in Oakland, Arkansas. Donaghey served as the 22nd governor of Arkansas from 1909 to 1913 and is best known for his efforts to improve the state's infrastructure, including the construction of the Arkansas State Capitol building.

3. On April 20, 1862, a Confederate victory at the Battle of Lee's Creek in Crawford County, Arkansas, marked a significant moment in the American Civil War. The battle helped secure Confederate control over much of Arkansas for the early part of the war.

4. Arkansas native Scottie Pippen played his final regular-season NBA game on April 20, 2004, as a member of the Chicago Bulls. Pippen is considered one of the greatest small forwards in NBA history and won six NBA championships with the Bulls in the 1990s.

5. On April 20, 2013, the town of Mayflower, Arkansas, suffered a devastating environmental disaster when a ruptured pipeline spilled thousands of gallons of crude oil into the town's streets and nearby waterways. The spill affected the health and livelihoods of residents and had long-lasting environmental consequences for the surrounding areas.