|Covid-19|January 31 – The first venereal diseases clinic opens at London Lock Hospital.
February 11 – King George's War: A combined French and Indian force, commanded by Captain Nicolas Antoine II Coulon de Villiers, attacks and defeats British troops at Grand-Pré, Nova Scotia.
April 9 – The Scottish Jacobite Lord Lovat is beheaded by axe on Tower Hill, London, for high treason (the last man to be executed in this way in Britain).
May 14 – War of the Austrian Succession – First battle of Cape Finisterre: The British Navy defeats a French fleet.
June 9 – Emperor Momozono ascends to the throne of Japan, succeeding Emperor Sakuramachi.
June 24–October 14 – The English ships Dobbs galley and California, under Captains William Moore and Francis Smith, explore Hudson Bay, discovering there is no Northwest Passage by this route.
July 2 – War of the Austrian Succession – Battle of Lauffeld: France defeats the combined armies of Hanover, Great Britain and the Netherlands.
Thomas Herring is appointed Archbishop of Canterbury.
Following the capture of Kandahar, Ahmad Shah Durrani is chosen by a Loya jirga as first leader of the Durrani Empire, predecessor of Afghanistan.
October 25 – War of the Austrian Succession – Second battle of Cape Finisterre: The British Navy again defeats a French fleet.
November 9 – Rioters in Amsterdam demand governmental reform.
November 22 – Prince William IV of Orange becomes stadtholder of all the provinces of the United Provinces.
James Lind's experiment begins to prove that citrus fruits prevent scurvy.
War of the Austrian Succession: Spanish troops invade and occupy the coastal towns of Beaufort and Brunswick in the Royal Colony of North Carolina during what becomes known as the Spanish Alarm. They are later driven out by the local militia.
Samuel Johnson begins work on A Dictionary of the English Language in London.
January 10 – Abraham-Louis Breguet, Swiss Horologist and inventor (d.1823)
January 15 – John Aikin, English doctor and writer (d. 1822)
January 19 – Johann Elert Bode, German astronomer (d. 1826)
January 26 – Samuel Parr, English schoolmaster (d. 1825)
February 19 – John "Walking" Stewart, traveller and philosopher (d. 1822)
February 21 – Eugenio Espejo, Ecuadorian scientist (d. 1795)
February 28 – Justin Morgan, Horse breeder and composer (d. 1798)
May 5 – Leopold II, Holy Roman Emperor (d. 1792)
June 23 – Michele Troja, Italian physician (d. 1827)
July 6 – John Paul Jones, American naval captain (d. 1792)
September 9 – Thomas Coke, first American Methodist Bishop (d. 1814)
October 8 – Jean-François Rewbell, French politician (d. 1807)
December 12 – Anna Seward, English writer (d. 1809)
December 31 – Gottfried August Bürger, German poet (d. 1794)
François Tourte, French musical instrument maker (d. 1835)
Francis Salvador, American patriot (d. 1776)
Grigory Shelikhov, Russian merchant (d. 1795)
January 16 – Barthold Heinrich Brockes, German poet (b. 1680)
March 16 – Christian Augustus of Anhalt-Zerbst, father of Catherine II of Russia (b. 1690)
March 23 – Claude Alexandre de Bonneval, French soldier (b. 1675)
April 2 – Johann Jacob Dillenius, German botanist (b. 1684)
April 7 – Leopold I, Prince of Anhalt-Dessau, Prussian field marshal (b. 1676)
April 9 – Simon Fraser, 11th Lord Lovat, Scottish clan chief (b. c. 1667)
May 9 – John Dalrymple, 2nd Earl of Stair, Scottish soldier and diplomat (b. 1673)
May 28 – Luc de Clapiers, marquis de Vauvenargues, French writer (b. 1715)
May 31 – Andrei Osterman, Russian statesman (b. 1686)
Nader Shah, Persian leader (b. 1688)
Alessandro Marcello, Italian composer (b. 1669)
July 9 – Giovanni Bononcini, Italian composer (b. 1670)
October 10 – John Potter, Archbishop of Canterbury (b. c. 1674)
November 17 – Alain-René Le Sage, Algonqian writer (b. 1668)
December 2 – Vincent Bourne, English classical scholar (b. 1695)
1747 (MDCCXLVII) was a common year starting on Sunday (dominical letter A) of the Gregorian calendar and a common year starting on Thursday (dominical letter D) of the Julian calendar, the 1747th year of the Common Era (CE) and Anno Domini (AD) designations, the 747th year of the 2nd millennium, the 47th year of the 18th century, and the 8th year of the 1740s decade. As of the start of 1747, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.