Constantine's three sons, already Caesars, each take the title of Augustus. Constantine II and Constans share the west while Constantius II takes control of the east.
William the Conqueror, Duke of Normandy and King of England, dies in Rouen while conducting a war which began when the French king made fun of him for being fat.
The term "United States" is adopted by the Continental Congress to be used instead of the "United Colonies."
Parliament passes the Municipal Corporations Act, reforming city and town governments in England.
California, in the midst of a gold rush, enters the Union as the 31st state.
A Japanese float plane, launched from a submarine, makes its first bombing run on a U.S. forest near Brookings, Oregon.
Allied troops land at Salerno, Italy and encounter strong resistance from German troops.
Elvis Presley makes his first appearance on The Ed Sullivan Show; cameras focus on his upper torso and legs to avoid showing his pelvis gyrations, which many Americans—including Ed Sullivan—thought unfit for a family show.
Hurricane Betsy, the first hurricane to exceed $1 billion in damages (unadjusted), makes its second landfall, near New Orleans.
Canada's Official Languages Act takes effect, making French equal to English as a language within the nation's government.
U.S. Marines launch Operation Dubois Square, a 10-day search for North Vietnamese troops near Da Nang.
Sri Lankan Army massacres 184 civilians of the Tamil minority in the Batticaloa District of Sri Lanka.
The Palestine Liberation Organization (PLO) officially recognizes Israel as a legitimate state.