The people of Sicily rebel against the Angevin king Charles I, in what becomes known as the Sicilian Vespers.
Origins of the American Civil War: "Border Ruffians" from Missouri invade Kansas and force election of a pro-slavery legislature.
Texas is readmitted to the Union following Reconstruction.
Second Sino-Japanese War: Japan declares Nanking capital of a new Chinese puppet government, nominally controlled by Wang Jingwei.
World War II: Allied bombers conduct their most severe bombing run on Sofia, Bulgaria.
World War II: Soviet forces invade Austria and capture Vienna; Polish and Soviet forces liberate Danzig.
Vietnam War: A car bomb explodes in front of the United States Embassy, Saigon, killing 22 and wounding 183 others.
U.S. President Ronald Reagan is shot in the chest outside a Washington, D.C., hotel by John Hinckley, Jr.; three others are wounded in the same incident.
SpaceX conducts the world’s first reflight of an orbital class rocket.[1][2]