May 29 – American Revolutionary War: Loyalist forces under Col. Banastre Tarleton kill surrendering American soldiers in the Waxhaw Massacre. August 16 – American Revolutionary War: Battle of Camden – The British defeat the Americans near Camden, South Carolina. September 25 – Benedict Arnold flees to British-held New York.
10 al 16 d'ochobre: n' Antilles ( mar Caribe) asocede'l Gran Furacán de 1780, el primer furacán con mayor númberu de víctimes mortales de los que se tienen datos (22 000 muertes direutes, 27 000 muertes totales). 4 de payares: en Virreinatu de Perú sublévense los indíxenes lideraos por Túpac Amaru II. 16 de payares: en Tungasuca ( Cusco ...
16 August – American Revolutionary War: Battle of Camden – the British defeat the Americans near Camden, South Carolina.  6 September–18 October – 1780 British general election. Lord North continues as prime minister with a reduced majority. 2 October – American Revolutionary War: British spy John André is hanged by American forces.
1780-81 - Teodor Kračun i Jakov Orfelin slikaju ikonostas Saborne crkve u Sremskim Karlovcima. Iz Bosne je u Austriju prešlo nekoliko grupa sa manjim brojem porodica. Kuga u Sarajevu: za tri godine umire 8.000 Sarajlija, na vrhuncu je bilo oko 100 mrtvih na dan.
Wikipedia Pākehā: Rārangi kōrero mō te taiao o Aotearoa. BrainyHistory: 1780. Kei te Wikimedia Commons he whakaahua atu anō mō. 1780. He maramara noa iho tēnei tuhipānui mō te maramataka. Tirohia ngā tikanga whakapai mō tēnei paetukutuku reo Māori.
The 1780 Atlantic hurricane season ran through the summer and fall in 1780. The 1780 season was extraordinarily destructive, and was the deadliest Atlantic hurricane season in recorded history, with over 28,000 deaths. Four different hurricanes, one in June and three in October, caused at least 1,000 deaths each;   this event has never ...
12 April – Camille, Prince of Marsan, nobleman and Prince of Lorraine (born 1725) 3 August – Étienne Bonnot de Condillac, philosopher (born 1715)  14 October – Pierre-Joseph Bourcet, tactician, general, chief of staff, mapmaker and military educator (born 1700) 16 November – Nicolas Joseph Laurent Gilbert, poet (born 1750)