1. On December 22, 1864, the Battle of Prairie D'Ane occurred in Ouachita County during the Civil War. The Confederates, led by General John Marmaduke, were defeated by Union troops led by General Frederick Salomon. The battle was significant as it marked the end of Confederate offensive operations in Arkansas.

2. The Arkansas state flag was adopted on December 22, 1913. The design features a diamond shape with a blue background and a white star above the state name, which is written in a red stripe. The diamond shape represents Arkansas's status as the only diamond-producing state in the USA.

3. On December 22, 1944, the Little Rock Nine member and civil rights activist, Minnijean Brown, was born in Little Rock, Arkansas. Brown was one of the nine black students who fought for their right to attend Little Rock Central High School in 1957, leading to the landmark Supreme Court case Brown v. Board of Education.

4. On December 22, 1958, the first interstate highway in Arkansas, I-55, was completed, connecting Memphis, Tennessee, and West Memphis, Arkansas. The highway would eventually span from New Orleans, Louisiana, to Chicago, Illinois, and is a major transportation artery in the region.

5. The Clinton Presidential Center in Little Rock, Arkansas, was dedicated on December 22, 2004. The center serves as a museum and library for the presidency of Bill Clinton, who was born in Hope, Arkansas. The center includes a replica Oval Office and other exhibits on Clinton's life and legacy.