The Seven Years' War: Frederick II of Prussia invaded Austria
The Seven Years' War: At the Battle of Rheinberg, Prussia defeated France
June 23 - Seven Years' War: At the Battle of Krefeld, Prussia defeats France
August 25 - Seven Years' War: The Battle of Zorndorf between Prussia and Russia ends without a decision
September 25 - Seven Years' War: The Battle of Tornow between Prussia and Sweden ends without a decision
October 14 - Seven Years' War: At the Battle of Hochkirk, the Prussians lose most of their artillery to the Austrians, but withdraw in an orderly fashion.
December 25 - Halley's comet is closest to the Sun.
Carl von Linné publishes the 10th edition of his work Systema Naturae. This forms the basis of zoological nomenclature (naming) with two-part, Latin names (binomial).
April 28 - James Monroe, President of the United States (d. 1831)
May 6 - Maximilien de Robespierre, French revolutionary (d. 1794)