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1784 ( was a MDCCLXXXIV) leap year starting on Thursday of the Gregorian calendar and a leap year starting on Monday of the Julian calendar, the 1784th year of the Common Era (CE) and (AD) designations, the 784th year of the Anno Domini 2nd millennium, the 84th year of the 18th century, and the 5th year of the 1780s decade. As of the start of 1784, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
January–June [ edit ]
January 6 – The Ottoman Empire agrees to Russia's annexation of the Crimea, in the Treaty of Constantinople. 
January 14 – The Congress of the United States ratifies the Treaty of Paris with Great Britain to end the American Revolutionary War, with the signature of President of Congress Thomas Mifflin.
January 15 – Henry Cavendish's paper to the Royal Society of London, Experiments on Air, reveals the composition of water. 
February 24 – The Captivity of Mangalorean Catholics at Seringapatam begins.
February 28 – John Wesley ordains ministers for the Methodist Church in the United States.
March 22 – The Emerald Buddha is installed at the , on the grounds of the Wat Phra Kaew Grand Palace in Bangkok.
May 12 – The Treaty of Paris, signed on September 3 the previous year, comes into effect.
May 20 – A treaty is signed in Paris between the Kingdom of Great Britain and the Dutch Republic, formally ending the Fourth Anglo-Dutch War.
June 4 – Elizabeth Thible is the first woman to ride in a hot air balloon, at Lyon, France.
July–December [ edit ]
Date unknown [ edit ]
India Act requires that the governor general be chosen from outside the British East India Company, and it makes company directors subject to parliamentary supervision.
Britain receives its first bales of imported American cotton.
King Carlos III of the Spanish Empire authorizes land grants in Alta California. Princess
Yekaterina Vorontsova-Dashkova is named first president, of the newly created Russian Academy. The
North Carolina General Assembly incorporates the town of Morgansborough, named for Daniel Morgan. The town is designated as the county seat for Burke County, North Carolina and is subsequently renamed Morgantown, and later shortened to become Morganton. The North Carolina General Assembly changes the name of Kingston, North Carolina, originally named for King
George III of Great Britain, to Kinston. The
Japanese famine continues as 300,000 die of starvation. A huge
locust swarm hits South Africa.
Benjamin Franklin invents bifocal spectacles.
Benjamin Franklin tries in vain to persuade the French to alter their clocks, in winter to take advantage of the daylight.
Antoine Lavoisier pioneers quantitative chemistry.
Cholesterol is isolated.
Carl Friedrich Gauss pioneers the field of summation with the formula summing 1:n as (n(n+1))/2, at the age of 7.
Madame du Coudray, pioneer of modern midwifery, retires.
January 17 – Philippe Antoine d’Ornano, Marshal of France (d. 1863)
January 28 – George Hamilton-Gordon, 4th Earl of Aberdeen, Prime Minister of the United Kingdom (d. 1860)
February 5 – Nancy Hanks, mother of Abraham Lincoln (d. 1818)
February 29 – Leo von Klenze, German neoclassicist architect, painter and writer (d. 1864)
March 12 – William Buckland, English geologist, paleontologist (d. 1856)
March 22 – Samuel Hunter Christie, English physicist, mathematician (d. 1865)
April 5 – Louis Spohr, German violinist, composer (d. 1859)
April 13 – Friedrich Graf von Wrangel, Prussian field marshal (d. 1877)
April 24 – Peter Vivian Daniel, Associate Justice of the Supreme Court of the United States (d. 1860)
June 24 – Juan Antonio Lavalleja, Uruguayan military, political figure (d. 1853)
July 21 – Charles Baudin, French admiral (d. 1854)
July 22 – Friedrich Bessel, German mathematician, astronomer (d. 1846)
July 27 – Denis Davydov, Russian general, poet (d. 1839)
August 18 – Robert Taylor, British Radical writer, freethought advocate (d. 1844)
September 4 – William Pope Duval, first civilian governor of the Florida Territory (d. 1854)
October 13 – King Ferdinand VII of Spain (d. 1833)
October 15 – Thomas Robert Bugeaud, Marshal of France and duke of Isly (d. 1849)
October 20 – Henry Temple, 3rd Viscount Palmerston, Prime Minister of the United Kingdom (d. 1865) October –
Sarah Biffen, armless English painter (d. 1850)
November 24 – Zachary Taylor, 12th President of the United States (d. 1850)
November 27 – August, Prince of Hohenlohe-Öhringen (d. 1853)
date unknown – Mary Anne Whitby, English scientist (d. 1850)
February 27 – Count of St. Germain, French philosopher, adventurer (b. 1710)
April 26 – Nano Nagle, Irish convent founder (b. 1718)
May 10 – Antoine Court de Gébelin, French pastor (b. 1725)
May 12 – Abraham Trembley, Swiss naturalist (b. 1710)
June 8 – Lukrecija Bogašinović Budmani, Croatian poet (b. 1710)
June 13 – Henry Middleton, American president of the Continental Congress (b. 1717)
June 26 – Caesar Rodney, American lawyer, signer of the Declaration of Independence (b. 1728)
July 1 – Wilhelm Friedemann Bach, German composer (b. 1710)
July 31 – Denis Diderot, French philosopher, encyclopedist (b. 1713)
August 4 – Giovanni Battista Martini, Italian musician (b. 1706)
August 10 – Allan Ramsay, Scottish painter (b. 1713)
August 14 – Nathaniel Hone, Irish-born painter (b. 1718)
August 28 – Junípero Serra, Spanish Franciscan missionary (b. 1713)
September 4 – César-François Cassini de Thury, French astronomer (b. 1714)
September 8 – Ann Lee, American religious leader (b. 1736)
December 5 – Phillis Wheatley, first published African-American author (b. 1753)
December 13 – Samuel Johnson, English writer, lexicographer (b. 1709)
December 25 – Yosa Buson, Japanese poet, painter (b. 1716)
December 26 – Seth Warner, American revolutionary leader (b. 1743)
date unknown – Lê Quý Đôn, Vietnamese philosopher, poet, encyclopedist, and government official (b. 1726)
References [ edit ]
^ Koch, Christophe; Schoell, Maximillian Samson Friedrich (1839). . Whittaker and Company. The Revolutions of Europe: Being an Historical View of the European Nations from the Subversion of the Roman Empire in the West to the Abdication of Napoleon
^ Cavendish, Henry (1784). "Experiments on Air". . Philosophical Transactions of the Royal Society of London 75: 372–384. doi: 10.1098/rstl.1785.0023. JSTOR 106582.
^ Michell, John (1784). "On the Means of Discovering the Distance, Magnitude, &c. of the Fixed Stars, in Consequence of the Diminution of the Velocity of Their Light, in Case Such a Diminution Should be Found to Take Place in any of Them, and Such Other Data Should be Procured from Observations, as Would be Farther Necessary for That Purpose. By the Rev. John Michell, B.D.F.R.S. In a Letter to Henry Cavendish, Esq. F.R.S. and A.S". Philosophical Transactions of the Royal Society of London. 75: 35–57. Bibcode: 1784RSPT...74...35M. doi: 10.1098/rstl.1784.0008. JSTOR 106576.
Further reading [ edit ]