About the day » Wednesday April 12, 1780Calender converter

• Catherine Sophie ( Seynaeve ) Sinnaeve, Eernegem († 1816)
• Christianus van Gulik, Borkel en Schaft, Netherlands († 1828)
• Cornelis Willems Mansvelder, Gouda
• Adrianus SPRONG, Leerdam
• Adriana Berkhout, leiden († 1855)
• Anne Marie Rose HECKER, Pfetterhouse (68480, Haut-Rhin, France) († 1783)
• Catharine_Elisabeth Wiese († 1842)
• Christianus Van Gulick, Borkel, Noord-Brabant, Nederland († 1828)
• Adriana van Broeckhoven, Udenhout (N.Br) († 1855)
• Aaltje Derks Plaggemarsch, Den Ham (buurtschap Magele) († 1836)

• Frederik Johan Christiaan van Poppenhuizen, Leeuwarden, Friesl
• Gerdt Eiken (40), Niederlangen
• Doetje Barelds (48), Knijpe, Friesland, Netherlands
• Franciscus Ludovicus Mortier (45), Waardamme
• Françoise Perraut (40)
• Guillelmus Derocker (71), Heusden Oost-Vlaanderen
• Franciscus Janssen - Janssens, Rumst
• Ida Gijsberts Baijens (74), Lith, Noord-Brabant, Nederland
• Eebele Barelds (50)
• Gijsbertje hendriksd Snel, Huijsen

• 1724 » Lyman Hall, American physician, clergyman, and politician, 16th Governor of Georgia († 1790)
• 1748 » Antoine Laurent de Jussieu, French botanist and author († 1836)
• 1777 » Henry Clay, American lawyer and politician, 9th United States Secretary of State († 1852)
• 1792 » John Lambton, 1st Earl of Durham, English soldier and politician, Lord Privy Seal († 1840)
• 1794 » Germinal Pierre Dandelin, Belgian mathematician and engineer († 1847)
• 1796 » George N. Briggs, American lawyer and politician, 19th Governor of Massachusetts († 1861)
• 1799 » Henri Druey, Swiss lawyer and politician, 2nd President of the Swiss Confederation († 1855)
• 1801 » Joseph Lanner, Austrian composer and conductor († 1843)
• 1816 » Charles Gavan Duffy, Irish-Australian politician, 8th Premier of Victoria († 1903)
• 1823 » Alexander Ostrovsky, Russian playwright and translator († 1886)

• 1704 » Jacques-Bénigne Bossuet, French bishop and theologian (b. 1627)
• 1748 » William Kent, English architect, designed Holkham Hall and Chiswick House (b. 1685)
• 1782 » Metastasio, Italian-Austrian poet and composer (b. 1698)
• 1788 » Carlo Antonio Campioni, French-Italian composer (b. 1719)
• 1795 » Johann Kaspar Basselet von La Rosée, Bavarian general (b. 1710)
• 1814 » Charles Burney, English composer and historian (b. 1726)
• 1817 » Charles Messier, French astronomer and academic (b. 1730)
• 1850 » Adoniram Judson, American lexicographer and missionary (b. 1788)
• 1866 » Peter Hesketh-Fleetwood, English politician, founded Fleetwood (b. 1801)
• 1872 » Nikolaos Mantzaros, Greek composer and theorist (b. 1795)

• Erfstadhouder Prins Willem V (Willem Batavus) (Huis van Oranje-Nassau) was from 1751 till 1795 sovereign of the Netherlands (also known as Republiek der Zeven Verenigde Nederlanden)
• May 13 » The Cumberland Compact is signed by leaders of the settlers in the Cumberland River area of what would become the U.S. state of Tennessee, providing for democratic government and a formal system of justice.
• September 21 » American Revolutionary War: Benedict Arnold gives the British the plans to West Point.
• October 2 » American Revolutionary War: John André, a British Army officer, is hanged as a spy by the Continental Army.
• October 7 » American Revolutionary War: American militia defeat royalist irregulars led by British major Patrick Ferguson in South Carolina.
• October 10 » The Great Hurricane of 1780 kills 20,000–30,000 in the Caribbean.
• November 5 » French-American forces under Colonel LaBalme are defeated by Miami Chief Little Turtle.

The temperature on April 12, 1780 was about 4.0 °C. Wind direction mainly east by south. Weather type: betrokken regen.