Belisarius Defeats the Vandals at Ad Decimum
On September 13, 533, Belisarius defeated the Vandals at Ad Decimum and went on to retake North Africa for the empire.
Ferdinand Magellan Sails from Spain to Circumnavigate the Globe
On September 20, 1519, Magellan sailed from Spain with five ships on the voyage that would become the first circumnavigation of the earth.
A Christian Alliance Breaks the Ottoman Siege of Vienna
On September 12, 1683, a Polish-led relief army broke the Ottoman siege of Vienna, ending Turkish expansion in Europe.
The British Win the Plains of Abraham Outside Quebec
On September 13, 1759, Wolfe defeated Montcalm on the Plains of Abraham outside Quebec; both generals died of their wounds.
The Mukden Incident Gives Japan a Pretext to Invade Manchuria
On September 18, 1931, the staged Mukden Incident gave Japan's Kwantung Army a pretext to invade and occupy Manchuria.