January 2 - The United Kingdom captures Calcutta, India.
March 14 - On-board the HMS Monarch, Royal Navy Admiral John Byng is executed by firing squad for breach of the Articles of War.
May 6 - Battle of Prague - Frederick the Great defeats an Austrian army and begins to besiege the city.
June 18 - Battle of Kolin - Frederick is defeated by an Austrian army under Marshal Daun, forcing him to evacuate Bohemia.
June 23 - Battle of Plassey - 3000 British troops under Robert Clive defeat a 50,000 strong Indian army under Siraj-ud-Dawlah at Plassey.
July 26 - Battle of Hastenbeck - An Anglo-Hanoverian army under the Duke of Cumberland is defeated by the French under Louis d'Estrées and forced out of Hanover.
July 30 - Battle of Gross-Jägersdorf - A Prussian army under Hans von Lehwald is defeated by the Russian army of Marshal Stepan Apraksin.
November 5 - Battle of Rossbach. Frederick defeats the French-Imperial army under the Duc de Soubise and Prince Joseph of Saxe-Hildburghausen, forcing the French to withdraw from Saxony.
November 22 - Battle of Breslau - An Austrian army under Prince Charles of Lorraine defeats the Prussian army of Wilhelm of Brunswick-Bevern and forces the Austrians behind the Oder.
December 6 - Battle of Leuthen - Frederick defeats Prince Charles's Austrian army in what is generally consideredhis greatest