After four months of widespread protest in America, the British Parliament repeals the Stamp Act, a taxation measure enacted to raise revenues for a standing British army in America.

The worst tornado in U.S. history passes through eastern Missouri, southern Illinois, and southern Indiana, killing 695 people, injuring some 13,000 people, and causing $17 million in property damage.

Nearly 300 students in Texas are killed by an explosion of natural gas at their school on March 18, 1937.

On March 18, the War Relocation Authority is created to “Take all people of Japanese descent into custody, surround them with troops, prevent them from buying land, and return them to their former homes at the close of the war.”

U.S. B-52 bombers are diverted from their targets in South Vietnam to attack suspected communist base camps and supply areas in Cambodia for the first time in the Vietnam war. While meant to shut down reinforcements for enemy Viet Cong, the bombs terrorize innocent civilians in a country that was still officially neutral in the Vietnam War.