About the day » Monday August 21, 1780Calender converter

• Anna Maria HUIJBREGTS, Steenbergen, Noord-Brabant, Nederland
• Angela Desnouck, Ardooie, West-Vlaanderen, België († 1811)
• Augustinus Josephus VANLERBERGHE, Woumen, 32026, West-Vlaanderen, Belgique
• Anna Maria Pasch, 's-Gravenhage, Zuid-Holland, Nederland († 1870)
• Albert Bartels Gort, De Wijk († 1850)
• Cecilia van Sprang, Culemborg, Gelderland, Nederland († 1846)
• Aart van Mourik, Brakel, Gelderland, Nederland († 1836)
• Angelique Hoste, Wingene, België
• Charles Joseph WICCART, Vieux-Berquin, 59615, Nord, Nord, France
• Adelaïde Catherine Hubertine Josephe de Posson, Namen,Province de Namur,Walloon Region,Belgique († 1858)

• Johannes DeMott (64), Somerset Co., NJ
• Catarina Smit (67), Bergambacht
• George Venables VERNON (71), Sudbury Hall. Derby
• Anna Philippsen (Philips, Philippens, Philipis) (76), Schimmert
• Antonie Adrianuszn Damen (30), Hooge en Lage Zwaluwe
• Catharina Smits, Bergambacht
• Georgina Carteret (70)
• Cornelis Kerremans, Terheijden, Noord Brabant
• James Bird (0), Bucks, Pennsylvania, United States
• Grietien Harms Sprik (47)

• 1754 » Banastre Tarleton, English general and politician († 1833)
• 1754 » William Murdoch, Scottish engineer and inventor, created gas lighting († 1839)
• 1765 » William IV of the United Kingdom († 1837)
• 1789 » Augustin-Louis Cauchy, French mathematician and academic († 1857)
• 1798 » Jules Michelet, French historian and philosopher († 1874)
• 1800 » Hiram Walden, American general and politician († 1880)
• 1801 » Guillaume Groen van Prinsterer, Dutch historian and politician († 1876)
• 1813 » Jean Stas, Belgian chemist and physician († 1891)
• 1816 » Charles Frédéric Gerhardt, French chemist and academic († 1856)
• 1823 » Nathaniel Everett Green, English painter and astronomer († 1899)

• 1762 » Lady Mary Wortley Montagu, English author, poet, and playwright (b. 1689)
• 1763 » Charles Wyndham, 2nd Earl of Egremont, English politician, Secretary of State for the Southern Department (b. 1710)
• 1775 » Zahir al-Umar, Arabian ruler (b. 1690)
• 1796 » John McKinly, American physician and politician, 1st Governor of Delaware (b. 1721)
• 1814 » Benjamin Thompson, American-English physicist and colonel (b. 1753)
• 1835 » John MacCulloch, Scottish geologist and academic (b. 1773)
• 1836 » Claude-Louis Navier, French physicist and engineer (b. 1785)
• 1838 » Adelbert von Chamisso, German botanist and poet (b. 1781)
• 1853 » Charles Tristan, marquis de Montholon, French general (b. 1783)
• 1854 » Thomas Clayton, American lawyer and politician (b. 1777)

• 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)
• March 14 » American Revolutionary War: Spanish forces capture Fort Charlotte in Mobile, Alabama, the last British frontier post capable of threatening New Orleans.
• May 29 » American Revolutionary War: At the Battle of Waxhaws, the British continue attacking after the Continentals lay down their arms, killing 113 and critically wounding all but 53 that remained.
• September 11 » American Revolutionary War: Sugarloaf Massacre: A small detachment of militia from Northampton County are attacked by Native Americans and Loyalists near Little Nescopeck Creek.
• September 23 » American Revolution: British Major John André is arrested as a spy by American soldiers exposing Benedict Arnold's change of sides.
• October 2 » American Revolutionary War: John André, a British Army officer, is hanged as a spy by the Continental Army.
• November 5 » French-American forces under Colonel LaBalme are defeated by Miami Chief Little Turtle.

The temperature on August 21, 1780 was about 21.0 °C. Wind direction mainly south-southwest. Weather type: zeer betrokken regen.