1742 CE
? – The House of Commons of Great Britain votes on the alleged rigging of the Chippenham by-election. It becomes a motion of no confidence, which leads to the resignation of Robert Walpole. George Frideric Handel's oratorio The Messiah is first performed, in Dublin, Ireland in aid of local charities. In Peru, Juan Santos takes the name Atahualpa II, and begins an ill-fated rebellion against Spanish rule. Father Domingo Garcia sends the first report of the rebellion to his superiors on June 2.
Geopolitics & Diplomacy
- January 9 – Robert Walpole is made Earl of Orford, and resigns as First Lord of the Treasury and Chancellor of the Exchequer, effectively ending his period as Prime Minister of Great Britain. On his formally relinquishing office five days later, he will have served 20 years and 314 days as Prime Minister, the longest single term ever, and also longer than the accumulated terms of any other British Prime Minister.source
- January 28? – The House of Commons of Great Britain votes on the alleged rigging of the Chippenham by-election. It becomes a motion of no confidence, which leads to the resignation of Robert Walpole.source
- February 16 – Spencer Compton, Earl of Wilmington, becomes Prime Minister of Great Britain.source
- March 15 – Denmark-Norway concludes a treaty of friendship with France, a day after the expiration of its 1739 treaty with Great Britain.source
- March 15 – The Verendrye brothers take possession of South Dakota in the name of the King of France.source
- October 5 – Pennsylvania's Colonial Governor George Thomas bars citizens from settling in Lancaster County, or west of the Blue Mountains.source
- October 5 – Pedro Cebrian y Agustin, Count of Fuenclara, arrives at Veracruz to become the new Spanish Viceroy of New Spain.source
- The Afghan tribes unite as a monarchy.source
Conflict & Security
- February 15— First Silesian War, part of War of the Austrian Succession: Troops of the Kingdom of Prussia, Saxony and France, under the command of Prince Dietrich of Anhalt-Dessau, capture the Moravian town of Iglau (now Jihlava). At this point, the Saxons and French declare that their obligations to Prussia have ceased.source
- May 17 – Battle of Chotusitz: Frederick the Great's army defeats the Austrians.source
- May 24 – War of the Austrian Succession – Battle of Sahay: French forces defeat the Austrians.source
- May – In Peru, Juan Santos takes the name Atahualpa II, and begins an ill-fated rebellion against Spanish rule. Father Domingo Garcia sends the first report of the rebellion to his superiors on June 2.source
- June 11 – Peace of Breslau: Austria cedes Silesia to Prussia.source
- July 7 – War of Jenkins' Ear: Battle of Bloody Marsh – British troops repel those of Spain (under Montiano), in the Province of Georgia.source
- August 17 – Accompanied by 10 French Army observers, Choctaw Indians from the French Louisiana territory cross the Tombigbee River and raid Chickasaw Indian towns in Georgia. Over three days, the attackers lose 50 men, the Chickasaw defenders about 25. For permitting the attack, the French Louisiana governor, the Sieur de Bienville, is summoned back to Paris.source
- August 19 – A British fleet led by Commodore William Martin enters the harbor of Naples with three warships, two frigates, and four bomb vessels, and sends a message giving the King Charles VII of Naples (the future King Charles III of Spain) 30 minutes to agree to withdraw Neapolitan troops from the Spanish Army. Don Carlos agrees and ends the threat of a Spanish foothold in Italy.source
- August 20 – The Swedish-Russian War effectively ends as 17,000 Swedish troops surrender in Finland at Helsingfors (Helsinki).source
Exploration & Expansion
- August 27 – George Anson, captain of HMS Centurion, arrives with his seriously ill crew at the island of Tinian (now U.S. territory as one of the Northern Mariana Islands) and saves his mission.source
- September 5 – The 46 survivors of Russia's Great Northern Expedition return to Petropavlovsk after having been shipwrecked on an island in the Bering Strait ten months earlier. They had completed the building of a new ship from the wreckage of the St Pyotr on August 21. Edward Heawood, "A History of Geographical Discovery in the Seventeenth and Eighteenth Centuries"source
Religion & Belief
Technology & Infrastructure
Science & Discovery
- June 7 – Christian Goldbach first describes Goldbach's conjecture ("Every even number is the sum of two primes") in a letter to fellow mathematician Leonhard Euler.source
Health & Medicine
Crime & Justice
- The Lopukhina Conspiracy arises at the Russian court.source
Disasters & Accidents
- June 20 – İzmir, formerly the ancient Greek city of Smyrna, is destroyed by fire.source
Culture & Society
- February 12 – John Carteret, 2nd Lord Carteret becomes Secretary of State for the Northern Department in Great Britain.source
- February 22 – Henry Fielding publishes his picaresque novel Joseph Andrews anonymously in London when "the first edition... reached the bookstalls" in the city.source
- March 29 – Acting in his capacity of Grand Duke of Lithuania, Poland's King Stanisław August Poniatowski issues a proclamation allowing Jews in the Lithuanian capital of Vilnius to live anywhere except for two public streets, the Pilies street and the Galves Street.source
- April 13 – George Frideric Handel's oratorio The Messiah is first performed, in Dublin, Ireland in aid of local charities.source
- July 14 – William Pulteney is created 1st Earl of Bath in Great Britain.source
- August 19 – Voltaire's controversial play Fanatacism, or Mahomet the Prophet is first performed, in Paris, to a theatre audience filled with French nobility.source
- November 13 – The Royal Danish Academy of Sciences and Letters is founded.source
- December 2 – The Pennsylvania Journal first appears in the United States.source
- Anders Celsius publishes his proposal for a centigrade temperature scale originated in 1741.source
- The University of Erlangen is founded in Bavaria.source
- Charles Jervas's English translation of Don Quixote is published posthumously. Through a printer's error, the translator's name is printed as 'Charles Jarvis', leading the book to forever be known as the Jarvis translation. It is acclaimed as the most faithful English rendering of the novel made up to this time.source
- Colin Maclaurin publishes his Treatise on Fluxions.source
Births
- January 8 – Philip Astley, English circus organizer (d. 1814)source
- March 14 – Agha Mohammad Khan Qajar, Iranian king (d. 1797)source
- April 28 – Henry Dundas, British statesman (d. 1811)source
- May 6 – Jean Senebier, Swiss pastor, botanist (d. 1809)source
- June 26 – Arthur Middleton, American politician (d. 1787)source
- June 28 – William Hooper, American statesman (d. 1790)source
- July 21 – John Cleves Symmes, American statesman (d. 1814)source
- July 27 – Nathanael Greene, American general (d. 1786)source
- September 14 – James Wilson, American politician, Associate Justice of the Supreme Court of the United States (d. 1798)source
- October 6 – Johan Herman Wessel, Norwegian poet (d. 1785)source
- November 5 – Richard Cosway, English artist (d. 1821)source
- December 9 – Carl Wilhelm Scheele, Swedish chemist (d. 1785)source
- December 16 – Gebhard Leberecht von Blücher, Prussian general (d. 1819)source
- December 26 (bapt.) – George Chalmers, Scottish antiquarian (d. 1825)source
Deaths
- January 1 – Peregrine Bertie, 2nd Duke of Ancaster and Kesteven, English statesman (b. 1686)source
- January 14 – Edmond Halley dies; James Bradley succeeds him as Astronomer Royal of Great Britain.source
- February 22 – Charles Rivington, English publisher (b. 1688)source
- April 15 – Samuel Shute, Governor of Massachusetts Bay and New Hampshire (b. 1662)source
- May 26 – Pylyp Orlyk, Ukrainian Zaporozhian Cossack starshina, diplomat (b. 1672)source
- June 18 – John Aislabie, British politician (b. 1670)source
- July 2 – Robert Petre, 8th Baron Petre, British peer, renowned horticulturist (b. 1713)source
- July 19 – William Somervile, English poet (b. 1675)source
- July 23 – Susanna Wesley, mother of John and Charles Wesley, known as mother of Methodism. (b. 1669)source
- July 30 – Nicholas Roosevelt (1658–1742), Dutch-American politician (b. 1658)source
- August 14 – Maria van Lommen, Dutch gold- and silversmith and guild member (b. 1688)source
- August 25 – Carlos Seixas, Portuguese composer (b. 1704)source
- September 18 – Vincenzo Ludovico Gotti, Italian Catholic cardinal (b. 1664)source
- November 20 – Melchior de Polignac, French diplomat (b. 1661)source