May 9th, 1720 was a Thursday.
April 21st, 1720 - May 21st, 1720
Why not celebrate an alternative birthday? In 972 days, exactly on December 31st, 2026, people who were born on May 9th, 1720 will be 112,000 days old!
French mathematician, inventor of descriptive geometry and father of differential geometry (1746-1818)
*May 9th, 1746, Beaune †July 28th, 1818, ParisFounder of the German automobile company Adam Opel AG
*May 9th, 1837, Rüsselsheim am Main †September 8th, 1895, Rüsselsheim am MainSwiss classical philologist (1843-1918)
*May 9th, 1843, Zürich †August 27th, 1918, ZürichNorwegian musicologist and educator
*May 9th, 1875, Ringsaker Municipality †August 5th, 1976, OsloIrish-American playwright and actor (1814-1880)
*May 9th, 1814, Dublin †June 7th, 1880, New York CityBritish actress and politician (1936–2023)
*May 9th, 1936, Birkenhead †June 15th, 2023, BlackheathFrench-Italian composer
*November 16th, 1720, Lunéville †April 12th, 1788, FlorenceMother of Maria Anna ("Nannerl") and Wolfgang Amadeus Mozart
*December 25th, 1720, Sankt Gilgen †July 3rd, 1778, ParisMonegasque prince (1720-1795)
*November 10th, 1720, Paris †March 21st, 1795, ParisPrincess of Anhalt-Dessau (1720-1793)
*December 7th, 1720, Dessau †December 5th, 1793, DessauBritish philosopher, preacher and mathematician (1723–1791)
*November 30th, 1720, Glamorgan †April 19th, 1791, LondonSlovak-Hungarian Jesuit, astronomer, mathematician, and physicist (1720–1792)
*May 15th, 1720, Banská Štiavnica †April 14th, 1792, ViennaSwedish industrialist and entomologist (1720-1778)
*February 10th, 1720, Finspång †March 7th, 1778, StockholmSwiss philosopher and naturalist (1720 – 1793)
*March 13th, 1720, Geneva †May 20th, 1793, GenthodDanish courtier, local administrator in Zealand
*May 30th, 1720, Hamar Municipality †June 11th, 1803, Jungshovedgaard1720 - 1788
*January 1st, 1720, Tauberbischofsheim †January 1st, 1788Former Prime Minister of the United Kingdom
*May 8th, 1720, London †October 2nd, 1764, SpaJacobite pretender to the thrones of England, Scotland, Ireland, and France; (1720-1788)
*December 31st, 1720, Palazzo Muti †January 31st, 1788, Palazzo MutiItalian painter (1720-1778)
*October 4th, 1720, Mogliano Veneto †November 9th, 1778, RomePolish-Lithuanian rabbi and Talmudist (1720–1797)
*April 23rd, 1720, Sialiec †October 9th, 1797, VilniusMonarch of Parma, Piacenza
*March 15th, 1720, Madrid †July 18th, 1765, AlessandriaFixed holidays (Christian feast day, Commemoration of the end of the German occupation of the Channel Islands related observances, Victory Day observances, celebration of the Soviet Union victory over Nazi Germany) which are celebrated on May 9th.
M = 1000 | D = 500 | C = 100 | X = 10 | IX = 9 | V = 5 |
Yes: 1720 is a leap year, therefore has a 29th of February with an additional leap day and a total of 366 days (instead of the usual 365 days in a normal year).