1. On March 20, 1927, the Arkansas River flooded, causing widespread damage across the state. The flood was caused by heavy rainfall combined with melting snow, and resulted in the displacement of thousands of people and the destruction of numerous homes and businesses.

2. In 1951, the Arkansas State Capitol building was completed on March 20, after several years of construction. The building, which was designed in the neoclassical style, serves as the seat of government for the state of Arkansas.

3. On March 20, 1974, the Arkansas House of Representatives passed a bill legalizing "dry counties" in the state. The bill allowed individual counties to decide whether or not to permit the sale of alcohol within their borders.

4. In 1991, Little Rock Air Force Base in Jacksonville, Arkansas received its first C-130J Super Hercules aircraft on March 20. The C-130J was a newer and more advanced version of the C-130 military transport plane, and was used extensively by the United States military in the Gulf War and other conflicts.

5. On March 20, 2017, Arkansas Governor Asa Hutchinson signed a bill into law that allowed concealed carry permit holders to bring firearms onto college campuses in the state. The controversial law sparked heated debate and protests from students and gun control advocates.