Licinius unifies the whole of the eastern Roman Empire under his own rule.
King Louis IX of France is ransomed.
Henry VIII of England and King Francis of France sign the Treaty of Westminster.
All Jews are expelled from France by order of Charles VI.
Spain withdraws from the Quadruple Alliance.
The United States doubles in size through the Louisiana Purchase, which was sold by France for $15 million.
Louisiana is admitted into the Union as a state.
Giuseppe Garibaldi, the Italian patriot and guerrilla leader, repulses a French attack on Rome.
Work begins on the Dams along the Red River, which will allow Union General Nathaniel Banks' troops to sail over the rapids above Alexandria, Louisiana.
The Soviet Union proposes a military alliance with France and Great Britain.
The George Washington Bridge, linking New York City and New Jersey, opens.
The British submarine HMS Seraph drops 'the man who never was,' a dead man the British planted with false invasion plans, into the Mediterranean off the coast of Spain.
U.S. Marines attack a division of North Vietnamese troops in the village of Dai Do.
U.S. troops invade Cambodia to disrupt North Vietnamese Army base areas.
The North Vietnamese launch an invasion of the South.
President Richard Nixon announces the resignation of Harry Robbins Haldeman, John Ehrlichman, and other top aides.
North Vietnamese troops enter the Independence Palace of South Vietnam in Saigon ending the Vietnam War.
Terrorists seize the Iranian Embassy in London.