|1751 by topic|
|Arts and Science|
|Lists of leaders|
|Birth and death categories|
|Establishments and disestablishments categories|
|Ab urbe condita||2504|
|Balinese saka calendar||1672–1673|
|British Regnal year||24 Geo. 2 – 25 Geo. 2|
|Chinese calendar||庚午年 (Metal Horse)|
4447 or 4387
— to —
辛未年 (Metal Goat)
4448 or 4388
|- Vikram Samvat||1807–1808|
|- Shaka Samvat||1672–1673|
|- Kali Yuga||4851–4852|
|Japanese calendar||Kan'en 4 / Hōreki 1|
|Julian calendar||Gregorian minus 11 days|
|Minguo calendar||161 before ROC|
|Thai solar calendar||2293–2294|
1877 or 1496 or 724
— to —
1878 or 1497 or 725
|Wikimedia Commons has media related to 1751.|
1751 (MDCCLI) was a common year starting on Friday of the Gregorian calendar and a common year starting on Tuesday of the Julian calendar, the 1751st year of the Common Era (CE) and Anno Domini (AD) designations, the 751st year of the 2nd millennium, the 51st year of the 18th century, and the 2nd year of the 1750s decade. As of the start of 1751, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923. In Britain and its colonies, 1751 only had 282 days due to the Calendar Act of 1750.
- January 1 – As the American colony in Georgia prepares the transition from a trustee-operated territory to a British colonial province, the prohibition against slavery is lifted by the Board of Trustees. At the time, the African-American population of Georgia is about 400 people who have been kept as slaves in violation of the law. By 1790, the slave population increases to over 29,000 and by 1860 to 462,000.
- January 7 – The University of Pennsylvania, conceived 12 years earlier by Benjamin Franklin and its other trustees to provide non-denominational higher education "to train young people for leadership in business, government and public service". rather than for the ministry, holds its first classes as "The Academy and Charitable School in the Province of Pennsylvania" in Philadelphia.
- January 13 – For the first time, the American colony in Georgia has an elected legislature after having been administered by a corporate Board of Trustees since its founding in 1732. The original Georgia Assembly meets in Savannah with 16 representatives as the colony prepares to become a British colonial province. After electing Francis Harris as the Speaker of the unicameral Assembly, the delegates successfully ask the Trustees not to surrender control of Georgia to the neighboring Province of South Carolina.
- January 18 – In the aftermath of the Lhasa riot of 1750, Chinese General Ban Di arrives at the capital of Tibet on behalf of the Emperor Qianlong and the seven imprisoned leaders of the rebellion are turned over to his custody by the 7th Dalai Lama, Keizang Gyatzo. General Ban Di guides the interrogation under torture of rebel leader Lobsang Trashi and, after five days orders the beheading and dismemberment of the seven rebels.
- March 25 – For the last time, New Year's Day is legally on March 25, in England and Wales and "in all his Majesty's Dominions in Europe, Asia, Africa and America"
- March 31 – Frederick, Prince of Wales dies in London and is succeeded by his son, the future George III of the United Kingdom, as heir-apparent to the British throne and Prince of Wales. George's mother Augusta of Saxe-Gotha becomes Dowager Princess of Wales.
- April 5 – Sweden's King Fredrik I dies at the age of 74 (March 25 on the Julian calendar, which remains in effect in Sweden and Finland until 1753), after a reign of 31 years, bringing an end to the rule of Sweden by the House of Hesse because he has no legitimate heirs. Prince Adolf Fredrik of the House of Holstein-Gottorp, who had been elected as the crown prince in 1743, becomes the new King.
- May 11 – The Pennsylvania legislature grants a charter to Benjamin Franklin and Dr. Thomas Bond, for the establishment in Philadelphia of the first hospital in the Colonies.
- May 27 – Adoption of the Gregorian calendar: Royal assent is given to An Act for Regulating the Commencement of the Year; and for Correcting the Calendar now in Use (the "Calendar Act") passed by the Parliament of Great Britain, introducing the Gregorian Calendar, correcting the eleven-day difference between Old Style and New Style dates and making 1 January legally New Year's Day from 1752 in the British Empire. It is largely promoted by George Parker, 2nd Earl of Macclesfield.
- July 28 – Battle of Kirkhbulakh: The Kingdom of Kartli defeats a large army of the Tabriz Khanate, under Erekle II.
- July 31 – Fire destroys 1,000 houses in Stockholm.
- August 13 – The Academy and College of Philadelphia, predecessor to the private University of Pennsylvania, opens its doors, with Benjamin Franklin as president.
- September 13 – Kalvária Banská Štiavnica in the Kingdom of Hungary is completed.
- October 27 – The Hōreki period begins in Japan.
- November 26 – Adolf Frederick is formally crowned as the King of Sweden. The coronation ceremony takes place almost eight months after he assumed the throne.
- December 3 – Battle of Arnee in India (Second Carnatic War): A British East India Company–led force under Robert Clive defeats and routs a much larger Franco-Indian army, under the command of Raza Sahib, at Arni.
- December 14 – The Theresian Military Academy is founded in Wiener Neustadt, Austria.
- In the University of Glasgow (Scotland):
- The Encyclopédie is first published.
- Ferdinando Galiani publishes the first modern economic analysis, Della Moneta.
- Swedish naturalist Carl Linnaeus publishes his Philosophia Botanica, the first textbook of descriptive systematic botanical taxonomy, and the first appearance of his binomial nomenclature.
- The Maria Theresa thaler is minted; it becomes an international currency.
- 1751–1775 – 13 per cent of appointees to audiencias in the Spanish Empire are Creoles.
- January 12 – Ferdinand I of the Two Sicilies (d. 1825)
- February 15 – Johann Heinrich Wilhelm Tischbein, German painter (d. 1829)
- February 20 – Johann Heinrich Voss, German poet (d. 1826)
- March 16 – James Madison, 4th President of the United States (d. 1836)
- April 5 – Marie-Aimée Lullin, Swiss entomologist (d. 1822)
- May 24 – Charles Emmanuel IV of Savoy, King of Sardinia (d. 1819)
- June 4 – John Scott, 1st Earl of Eldon, Lord Chancellor of Great Britain (d. 1838)
- June 17 – Joshua Humphreys, American naval architect (d. 1838)
- July 11 – Caroline Matilda, British princess, queen consort of Denmark (d. 1775)
- July 29 – Elisabetta Caminèr Turra, Venetian writer (d. 1796)
- July 30 (midnight) – Maria Anna Mozart ("Nannerl"), Austrian pianist, singer, composer and violinist, sister of Wolfgang Amadeus Mozart (d. 1829)
- September 1 – Emanuel Schikaneder, German dramatist, actor and singer (d. 1812)
- September 5 – François Joseph Westermann, French Revolutionary leader, general (d. 1794)
- October 5 – James Iredell, Associate Justice of the Supreme Court of the United States (d. 1799)
- October 22 – Willem V, the Prince of Orange and head of the House of Orange-Nassau, becomes the new Stadtholder of the Dutch Republic upon the death of his father, Willem IV. He holds the office of the Republic's chief executive until February 23, 1785, when the office of Stadtholder is abolished.
- October 30 – Richard Brinsley Sheridan, Irish dramatist, politician (d. 1816)
- date unknown
- Armand-Marie-Jacques de Chastenet, Marquis of Puységur, French mesmerist (d. 1825)
- Gregoria Apaza, Bolivian indigenous leader (d. 1782)
- Charlotta Richardy, Swedish industrialist (d. 1831)
- Thomas Sheraton, English furniture designer (d. 1806)
- Maria Antonia Fernandez, Spanish flamenco singer, dancer (d. 1787)
- January 17 – Tomaso Albinoni, Italian composer (b. 1671)
- January 20 – John Hervey, 1st Earl of Bristol, English politician (b. 1665)
- January 25 – Paul Dudley, Massachusetts Attorney-General (b. 1675)
- January 29 – Martin Knutzen, German philosopher (b. 1713)
- February 5 – Henri François d'Aguesseau, Chancellor of France (b. 1668)
- February 7 – Albert Borgard, Danish artillery and engineer officer (b. 1659)
- March 21 – Johann Heinrich Zedler, German publisher (b. 1706)
- March 24 – János Pálffy, Hungarian field marshal, Palatine (b. 1664)
- March 25 – King Frederick I of Sweden (b. 1676)
- March 29 – Thomas Coram, English sea captain, philanthropist (b. c. 1668)
- March 31 – Frederick, Prince of Wales, Hanoverian-born heir to the British throne (b. 1707)
- April 19 – Peter Lacy, Irish-born Russian Field marshal (b. 1678)
- May 20 – Domènec Terradellas, Spanish opera composer (b. 1713)
- June 9 – John Machin, English mathematician (b. c.1686)
- June 20 – Adriaan Valckenier, Dutch Governor-General of the Dutch East Indies (1737–1741) (b. 1695)
- August 18 – Samuel von Schmettau, Prussian field marshal (b. 1684)
- August 22 – Andrew Gordon, British physicist (b. 1712)
- August 30 – Christopher Polhem, Swedish scientist (b. 1661)
- October 22 – William IV, Prince of Orange, Stadtholder of the Dutch Republic (b. 1711)
- October 26 – Philip Doddridge, English nonconformist religious leader (b. 1702)
- November 18 – Abraham Vater, German anatomist (b. 1684)
- December 12 – Henry St John, 1st Viscount Bolingbroke, English statesman, philosopher (b. 1678)
- December 16 – Leopold II, Prince of Anhalt-Dessau, Prussian general (b. 1700)
- December 19 – Louise of Great Britain, queen of Frederick V of Denmark (b. 1724)
- December 29 – Charles, Count of Armagnac, French noble (b. 1684)
- James Van Horn Melton, Religion, Community, and Slavery on the Colonial Southern Frontier (Cambridge University Press, 2015) p. 232
- Charles E. Cobb Jr., On the Road to Freedom: A Guided Tour of the Civil Rights Trail (Algonquin Books, 2008) p. 156
- "Penn's Heritage", University of Pennsylvania website
- Edward Potts Cheyney, History of the University of Pennsylvania, 1740–1940 (University of Pennsylvania Press, 2014) p. 37
- Craig A. Doherty and Katherine M. Doherty, The Thirteen Colonies: Georgia (Infobase Publishing, 2005) p. 64
- Edward J. Cashin, Beloved Bethesda: A History of George Whitefield's Home for Boys, 1740–2000 (Mercer University Press, 2001) p. 67
- Yingcong Dai, The Sichuan Frontier and Tibet: Imperial Strategy in the Early Qing (University of Washington Press, 2009) p. 131
- "Saturday's Post from the Whitehall and General Evening Posts", The Derby Mercury (Derby, Derbyshire), September 15, 1752, p. 1
- Williams, Hywel (2005). Cassell's Chronology of World History. London: Weidenfeld & Nicolson. pp. 314–315. ISBN 0-304-35730-8.
- Dagnall, H. (1991). Give us back our eleven days. Edgware: author. p. 19. ISBN 0-9515497-2-3.
- Semple, Clare (2006). A Silver Legend: the story of the Maria Theresa Thaler. Manchester: Barzan Publishing. ISBN 0-9549701-0-1.