Arkansas is admitted as the 25th U.S. state.

American Civil War: Arkansas secedes from the Union.

American Civil War: Union forces defeat Confederate troops at Pea Ridge in northwestern Arkansas.

American Civil War: the Battle of Fort Hindman occurs in Arkansas.

The deadliest November tornado outbreak in U.S. history strikes on Thanksgiving day. 27 twisters of great strength are reported in the Midwest, including the strongest November tornado, an estimated F4, that devastates Heber Springs, Arkansas. There are 51 deaths in Arkansas alone, 76 deaths and over 400 injuries in all.

FBI siege on the compound of The Covenant, The Sword, and the Arm of the Lord (CSAL) in Arkansas

ATF raid on The Covenant, The Sword, and the Arm of the Lord compound in northern Arkansas.

Oklahoma City bombing: The Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma, USA, is bombed, killing 168. That same day convicted murderer Richard Wayne Snell, who had ties to one of the bombers, Timothy McVeigh, is executed in Arkansas.

U.S. President Bill Clinton's former business partners in the Whitewater land deal, James McDougal and Susan McDougal, and the Governor of Arkansas Jim Guy Tucker, are convicted of fraud.

Jonesboro massacre: Mitchell Johnson and Andrew Golden, aged 11 and 13 respectively, fire upon teachers and students at Westside Middle School in Jonesboro, Arkansas; five people are killed and ten are wounded.