1773
| Years: 1770 1771 1772 - 1773 - 1774 1775 1776 | |
| Decades: 1740s 1750s 1760s - 1770s - 1780s 1790s 1800s | |
| Centuries: 17th century - 18th century - 19th century 1773 in art List of state leaders in 1773 | |
Events
- January 12 - The first American museum open to the public is opened in (Charleston, South Carolina).
- January 17 - Captain James Cook becomes the first European explorer to cross the Antarctic Circle
- April 27 or May 10 - The British Parliament passes the Tea Act, designed to save the British East India Company by granting it a monopoly on the North American tea trade.
- May 8 - Ali Bey dies of wounds received in a skirmish with Ottoman rebels
- October 12 - America's first insane asylum opens for 'Persons of Insane and Disordered Minds' in Williamsburg, Virginia.
- December 16 - Boston Tea Party
- Antigua Guatemala is destroyed by an earthquake and the capital of Guatemala is moved to Guatemala City
- Holy Roman Emperor Joseph II expels Jesuits from the Empire, and Pope Clement XIV orders the dissolution of the Society of Jesus.
- Baron de Morveau experiments with chlorine as a disinfectant
- Daniel Boone leads some pioneers into Kentucky. "Native American Indians" attack, and Boone's son is killed
- Hilaire Rouelle discovers urea
Births
- January 27 - Prince Augustus of Great Britain, later Duke of Sussex, sixth son of King George III
- February 9 - William Henry Harrison, President of the United States (d. 1841)
- March 14 - John Holmes, American politician
- April 9 - Étienne Aignan, translator, political writer, librettist, playwright, member of the Académie française (d. 1824)
- May 15 - Prince Klemens Wenzel von Metternich, statesman (d. 1859)
- May 19 - Arthur Aikin, English chemist and mineralogist
- July 5 - Prince Louis of Bourbon-Parma, later King of Etruria
- October 6 - Louis Philippe, Duc de Chartres, later Duc d'Orleans and King of the French. (d. 1850)
- December 27 - Sir George Cayley, English aviation pioneer.
- Henry Hunt, British politician (d. 1835)
Deaths
- February 20 - King Charles Emmanuel III of Savoy
- May 8 - Ali Bey
- July 23 - George Edwards, naturalist (* 1693)
- Ahmad Shah - founder of the Durrani Empire (cancer)
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