1780

1780 (MDCCLXXX) was a leap year starting on Saturday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar, the 1780th year of the Common Era (CE) and Anno Domini (AD) designations, the 780th year of the 2nd millennium, the 80th year of the 18th century, and the 1st year of the 1780s decade. As of the start of 1780, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.

Millennium:	2nd millennium
Centuries:	17th century – 18th century – 19th century
Decades:	1750s  1760s  1770s  – 1780s –  1790s  1800s  1810s
Years:	1777 1778 1779 – 1780 – 1781 1782 1783

1780 in other calendars

Gregorian calendar	1780 MDCCLXXX
Ab urbe condita	2533
Armenian calendar	1229 ԹՎ ՌՄԻԹ
Assyrian calendar	6530
Balinese saka calendar	1701–1702
Bengali calendar	1187
Berber calendar	2730
British Regnal year	20 Geo. 3 – 21 Geo. 3
Buddhist calendar	2324
Burmese calendar	1142
Byzantine calendar	7288–7289
Chinese calendar	己亥年 (Earth Pig) 4476 or 4416     — to — 庚子年 (Metal Rat) 4477 or 4417
Coptic calendar	1496–1497
Discordian calendar	2946
Ethiopian calendar	1772–1773
Hebrew calendar	5540–5541
Hindu calendars
- Vikram Samvat	1836–1837
- Shaka Samvat	1701–1702
- Kali Yuga	4880–4881
Holocene calendar	11780
Igbo calendar	780–781
Iranian calendar	1158–1159
Islamic calendar	1193–1195
Japanese calendar	An'ei 9 (安永９年)
Javanese calendar	1705–1706
Julian calendar	Gregorian minus 11 days
Korean calendar	4113
Minguo calendar	132 before ROC 民前132年
Nanakshahi calendar	312
Thai solar calendar	2322–2323
Tibetan calendar	ས་མོ་ཕག་ལོ་ (female Earth-Boar) 1906 or 1525 or 753     — to — ལྕགས་ཕོ་བྱི་བ་ལོ་ (male Iron-Rat) 1907 or 1526 or 754

Events

• January 16 – American Revolutionary War: Battle of Cape St. Vincent
• February – Armed Neutrality of the North alliance formed between Denmark, Sweden, and Russia.
• March 26 – The British Gazette and Sunday Monitor, the first Sunday newspaper in Britain
• April 16 – The University of Münster in Münster, North Rhine-Westphalia, Germany is founded
• May 12 – American Revolutionary War: Charleston, South Carolina is taken by British forces.
• 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
• October 2 – American Revolutionary War: British spy John Andre is hanged by American forces.
• October 10-16 – Great hurricane flattens the islands of Barbados, Martinique and St. Eustatius
• November 29 – Maria Theresa of Austria dies and her Habsburg dominions pass to her ambitious son, Joseph II, who has already been Holy Roman Emperor since 1765.

• Britain attacks the United Provinces before it can join the Neutral Alliance, because of its support for the American uprising.
• First Epsom Derby horse race run at Epsom Downs, Surrey, England.
• Emperor Kokaku ascends to the throne of Japan
• In Ireland, Lady Berry, who is sentenced to death for the murder of her son, is released when she agrees to become an executioner (retires 1810)
• Good grain and wine harvest in France
• 35th and last volume of Diderot's Encyclopédie published

Births

for more information, see Category:1780 births.

Deaths

for more information, see Category:1780 deaths.