1761
January – June
January 14 – Third Battle of Panipat was fought between Marathas and Afghans.
January 16 – British capture Pondicherry, India from the French.
February 8 – An earthquake in London breaks chimneys in Limehouse and Poplar.
March 8 – A second earthquake occurs in North London, Hampstead and Highgate.
June 6 – A transit of Venus occurred, and was observed from 120 locations around the Earth.
July – December
September 8 – Marriage of George III of the United Kingdom to Charlotte of Mecklenburg-Strelitz (Queen Charlotte).
September 19 – Slave trade to and within Portugal mainland is forbidden.
September 22 – Coronation of George III of the United Kingdom and Queen Charlotte.
December 16 – Seven Years’ War: After four months of siege, the Russians under Pyotr Rumyantsev take the Prussian fortress of Kolobrzeg.
In Dutch Guyana, a ‘state’ formed by escaped slaves signs a treaty with the local governor.
Opening of Matthew Boulton’s Soho Manufactory.
The tune to Twinkle Twinkle, Little Star is published in France.
Ongoing events
French and Indian War (1754–1763)
Seven Years’ War (1756–1763)