1780

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 by topic:

Arts and Sciences

Archaeology – Architecture – Art – Literature ( Poetry) – Music – Science

Countries

Canada – Great Britain – United States

Lists of leaders

Colonial governors – State leaders

Birth and death categories

Births – Deaths

Establishments and disestablishments categories

Establishments – Disestablishments

Works category

Works

1780 in other calendars

Gregorian calendar	1780 MDCCLXXX
Ab urbe condita	2533
Armenian calendar	1229 ԹՎ ՌՄԻԹ
Assyrian calendar	6530
Bahá'í calendar	-64–-63
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	己亥年十一月廿五日 (4416/4476-11-25) — to — 庚子年十二月初六日 (4417/4477-12-6)
Coptic calendar	1496–1497
Ethiopian calendar	1772–1773
Hebrew calendar	5540–5541
Hindu calendars
- Vikram Samvat	1836–1837
- Shaka Samvat	1702–1703
- Kali Yuga	4881–4882
Holocene calendar	11780
Igbo calendar
- Ǹrí Ìgbò	780–781
Iranian calendar	1158–1159
Islamic calendar	1193–1195
Japanese calendar	An'ei 9 (安永9年)
Juche calendar	N/A (before 1912)
Julian calendar	Gregorian minus 11 days
Korean calendar	4113
Minguo calendar	132 before ROC 民前132年
Thai solar calendar	2323

Year 1780 (MDCCLXXX) was a leap year starting on Saturday (link will display the full calendar) of the Gregorian calendar and a leap year starting on Wednesday of the 11-day slower Julian calendar.

Events

January–June

• January 16 – American Revolutionary War – Battle of Cape St. Vincent: British Admiral Sir George Rodney defeats a Spanish fleet.
• February – The League of Armed Neutrality is formed between Denmark, Sweden, and Russia.
• February 29 – The Omicron Delta Omega co-ed fraternity is founded by Benjamin Franklin.
• March 8 – Formation of the League of Armed Neutrality.
• March 11 – General La Fayette embarks on French frigate Hermione (1779) at Rochefort, arriving in Boston on April 28 carrying the news that he has secured French men and ships to reinforce the American side in the American Revolutionary War.
• March 26 – The British Gazette and Sunday Monitor, the first Sunday newspaper in Britain, begins publication.
• 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 13 – Cumberland Compact signed by American settlers in the Cumberland Valley of Tennessee.
• May 19 – New England's Dark Day: An unaccountable darkness spreads over New England, regarded by some observers as a fulfillment of Bible prophecy.
• May 29 – American Revolutionary War: Loyalist forces under Col. Banastre Tarleton kill surrendering American soldiers in the Waxhaw Massacre.
• June 2– 7 – Gordon Riots in London, Great Britain: The Duke of Richmond calls, in the House of Lords, for manhood suffrage and annual parliaments, which are rejected. About 285 people involved with the riots are shot dead by troops.

July–December

• July 11 – French soldiers arrive in Newport, Rhode Island to reinforce colonists in the American Revolutionary War.
• August 16 – American Revolutionary War – Battle of Camden: British troops inflict heavy losses on a Patriot army at Camden, South Carolina.
• August 9 – American Revolutionary War: Spanish admiral Luis de Córdova y Córdova captures a British convoy totalling 55 vessels amongst Indiamen, frigates and other cargo ships off Cape St. Vincent.
• August 24 – Louis XVI of France abolishes the use of torture in extracting confessions.
• September 21 – Benedict Arnold gives detailed plans of West Point to Major John André. Three days later, André is captured with papers revealing that Arnold was planning to surrender West Point to the British.
• September 25 – Benedict Arnold flees to British-held New York.
• October 2 – American Revolutionary War: In Tappan, New York, British spy John André is hanged by American forces.
• October 7 – American Revolutionary War – Battle of Kings Mountain: Patriot militia forces annihilate a Loyalists under British Major Patrick Ferguson at Kings Mountain in South Carolina.
• October 10– October 16 – The Great Hurricane flattens the islands of Barbados, Martinique and St. Eustatius: 22,000 dead.
• 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.
• December 16 – Emperor Kōkaku accedes to the throne of Japan.
• December 20 – Start of the Fourth Anglo-Dutch War.

Date unknown

• Jose Gabriel Kunturkanki, businessman and landowner, proclaims himself Inca Tupac Amaru II.
• Jeremy Bentham's Introduction to Principles of Morals and Legislation, presenting his formulation of utilitarian ethics, is printed (but not published) in London.
• Nikephoros Theotokis starts introducing Edinoverie, an attempt to integrate the Old Believers into Russia's established church.
• 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)
• The original Craven Cottage is built by William Craven, 6th Baron Craven, in London on what will become the centre circle of Fulham F.C.'s pitch.
• The amateur dramatic group Det Dramatiske Selskab in Christiania is founded in Norway.
• Western countries pay 16,000,000 ounces of silver for Chinese goods.
• c.9 million population in Britain.

Births

• February 1 – David Porter, American naval officer (d. 1843)
• February 19 – Richard McCarty, American politician (d. 1844)
• April 29 – Charles Nodier, French author (d. 1844)
• May 21 – Elizabeth Fry, British humanitarian (d. 1845)
• May 29 – Henri Braconnot, French chemist and pharmacist (d. 1855)
• June 1 – Carl von Clausewitz, Prussian military strategist (d. 1831)
• July 5 – François Carlo Antommarchi, French Physician (d. 1838)
• August 29 – Jean Auguste Dominique Ingres, French painter (d. 1867)
• November 13 – Ranjit Singh, Maharaja of The Punjab( Sikh Empire), (d. 1839)
• December 26 – Mary Fairfax Somerville, British mathematician (d. 1872)
• date unknown
  • James Justinian Morier, British diplomat and novelist (d. 1849)
  • John Bird Sumner, Archbishop of Canterbury (d. 1862)

Deaths

• February 14 – William Blackstone, English jurist (b. 1723)
• February 17 – Andreas Felix von Oefele, German historian and librarian (b. 1706)
• February 18 – Kristijonas Donelaitis, Lithuanian poet (b. 1714)
• March 17 – Elizabeth Butchill, English woman executed for the murder of her newborn child (b. ca. 1758)
• March 26 – Charles I, Duke of Brunswick-Lüneburg (b. 1713)
• May 18 – Charles Hardy, British governor of Newfoundland (b. c. 1714)
• June 3 – Thomas Hutchinson, American colonial governor of Massachusetts (b. 1711)
• July 4 – Prince Charles Alexander of Lorraine, Austrian military leader (b. 1712)
• July 14 – Charles Batteux, French philosopher (b. 1713)
• August 3 – Étienne Bonnot de Condillac, French philosopher (b. 1715)
• August 29 – Jacques-Germain Soufflot, French architect (b. 1713)
• September 4 – John Fielding, English magistrate and social reformer (b. 1721)
• September 8 – Enoch Poor, American Revolutionary general (b. 1736)
• October 2 – John André, British Army officer of the American Revolutionary War (executed) (b. 1750)
• October 17 – William Cookworthy, English chemist (b. 1705)
• November 26 – Sir James Denham Steuart, 4th Baronet, British economist (b. 1712)
• November 29 – Empress Maria Theresa of Austria (b. 1717)
• December 26 – John Fothergill, English physician (b. 1712)
• date unknown – Thomas Dilworth, British cleric and writer