About the day » Wednesday August 9, 1780Calender converter

• Amalie Wagener, Wunderthausen, Kreis Wittgenstein († 1785)
• Adrianus MORRE, Gorinchem, 6026, Zuid-Holland, Nederland († 1823)
• Berendina - Bernardina, Barendina, Bernadina, Berndina Polkamp, Eijmeren, Gelderland, Netherlands († 1866)
• Cornelia van der Velden, Maassluis († 1847)
• Adriana Josepha Kluijtmans, Oirschot, Gemeente Oirschot, Noord-Brabant, Nederland († 1866)
• Aart IJsbrandsz van Drunen, Almkerk, Noord-Brabant, Nederland
• Catharina Pieternella Berkenwaard, Amsterdam Republiek der 7 Verenigde Provinciën († 1855)
• Antonius Verhoeven, Schijndel († 1827)
• Adam Reimer Christoph Graaf van Schack Heer van Zülow en Brüse († 1852)
• Antony Verhoeven, Schijndel

• Archange Joseph DEBLIQUY (28), Ollignies, 7866, Hainaut, Belgique
• Lubbert van de Peppel (73), Wageningen
• Jannigje Hendriksd VERBAAS (0), Mijnsheerenland
• Adriana Bloklant, Ghybeland, Zuid-Holland, Nederland
• Jean MAZE (63), Longué, 49160, France
• Hendrik Tijmensen Verbeek (26), Nunspeet
• Gerrit Moijnen, Ermelo
• Jacob Alles, Lippenhuizen
• Gerrit Moijnen (58), Ermelo/Horst
• Helena van Vliet, Zwammerdam

• 1722 » Prince Augustus William of Prussia († 1758)
• 1726 » Francesco Cetti, Italian priest, zoologist, and mathematician († 1778)
• 1748 » Bernhard Schott, German music publisher († 1809)
• 1757 » Elizabeth Schuyler Hamilton, American humanitarian; wife of Alexander Hamilton († 1854)
• 1757 » Thomas Telford, Scottish architect and engineer, designed the Menai Suspension Bridge († 1834)
• 1776 » Amedeo Avogadro, Italian physicist and chemist († 1856)
• 1783 » Grand Duchess Alexandra Pavlovna of Russia († 1801)
• 1788 » Adoniram Judson, American missionary and lexicographer († 1850)
• 1797 » Charles Robert Malden, English lieutenant and surveyor († 1855)
• 1805 » Joseph Locke, English engineer and politician († 1860)

• 1634 » William Noy, English lawyer and judge (b. 1577)
• 1720 » Simon Ockley, English orientalist and academic (b. 1678)
• 1744 » James Brydges, 1st Duke of Chandos, English academic and politician, Lord Lieutenant of Radnorshire (b. 1673)
• 1816 » Johann August Apel, German jurist and author (b. 1771)
• 1861 » Vincent Novello, English composer and publisher (b. 1781)
• 1886 » Samuel Ferguson, Irish lawyer and poet (b. 1810)
• 1910 » Huo Yuanjia, Chinese martial artist, co-founded the Chin Woo Athletic Association (b. 1868)
• 1919 » Ruggero Leoncavallo, Italian composer and educator (b. 1857)
• 1920 » Samuel Griffith, Welsh-Australian politician, 9th Premier of Queensland (b. 1845)
• 1932 » John Charles Fields, Canadian mathematician, founder of the Fields Medal (b. 1863)

• 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)
• April 16 » Franz Friedrich Wilhelm von Fürstenberg founds the University of Münster.
• June 23 » American Revolution: Battle of Springfield fought in and around Springfield, New Jersey (including Short Hills, formerly of Springfield, now of Millburn Township).
• August 22 » James Cook's ship HMSResolution returns to England (Cook having been killed on Hawaii during the voyage).
• November 5 » French-American forces under Colonel LaBalme are defeated by Miami Chief Little Turtle.
• November 9 » American Revolutionary War: In the Battle of Fishdam Ford a force of British and Loyalist troops fail in a surprise attack against the South Carolina Patriot militia under Brigadier General Thomas Sumter.
• December 14 » Founding Father Alexander Hamilton marries Elizabeth Schuyler Hamilton at the Schuyler Mansion in Albany, New York

The temperature on August 9, 1780 was about 25.0 °C. Wind direction mainly east. Weather type: omtrent helder.