September 12th, 1644 was a Monday.
August 24th, 1644 - September 23rd, 1644
Why not celebrate an alternative birthday? In 344 days, exactly on April 8th, 2025, people who were born on September 12th, 1644 will be 139,000 days old!
German association football player and manager
*September 12th, 1964, Castrop-RauxelAmerican actor (1973–2013)
*September 12th, 1973, Glendale †November 30th, 2013, ValenciaFrench scientist (1897-1956)
*September 12th, 1897, 13th arrondissement of Paris †March 17th, 1956, ParisPolish science fiction author, philosopher and futurologist (1921-2006), studied medical doctor
*September 12th, 1921, Lviv †March 27th, 2006, KrakówAmerican track and field athlete (1913–1980)
*September 12th, 1913, Oakville †March 31st, 1980, TucsonAmerican paleontologist (1811-1898)
*September 12th, 1811, Hingham †August 7th, 1898, BethlehemEnglish real estate entrepreneur, philosopher, early Quaker and founder of the Province of Pennsylvania (1644-1718)
*October 14th, 1644, London †July 30th, 1718, RuscombeDanish astronomer (*1644 – †1710)
*September 25th, 1644, Aarhus †September 19th, 1710, CopenhagenSwedish noble 1644–1716
*February 7th, 1644, Stockholm †November 26th, 1716, StockholmDutch Lieutenant Admiral
*December 29th, 1644, Brielle †January 6th, 1711, LeidenBohemian-Austrian composer and violinist (1644–1704)
*August 12th, 1644, Stráž pod Ralskem †May 3rd, 1704, SalzburgEnglish princess, duchesse of Orléans (1644-1670)
*June 16th, 1644, Exeter †June 30th, 1670, Saint-CloudPrince-Bishop of Bamberg (1644-1693)
*May 16th, 1644, Eichstätt †October 9th, 1693, BambergFrench historian (1644-1720)
*November 5th, 1644, Vaucouleurs †May 2nd, 1720, ParisDanish statesman (1644-1708)
*April 21st, 1644, Copenhagen †July 21st, 1708, Clausholm CastleGerman baroque composer
*May 31st, 1644, Unterschwaningen †January 1st, 1710, LondonFrench bishop and theologian (1644-1724)
*March 6th, 1644, Évreux †April 12th, 1724, Boulogne-sur-MerEnglish charcoal merchant, chemist and concert promoter
*January 14th, 1644, Rushden †September 27th, 1714, ClerkenwellDutch general in the service of England (1644-1703)
*June 4th, 1644, Amerongen Castle †February 11th, 1703, UtrechtGerman philosopher (1644-1707)
*March 22nd, 1644, Oldenburg †January 18th, 1707, LeipzigGerman businessman
*March 18th, 1644, Schneeberg †January 26th, 1715, SchneebergPolitician (1648-1719)
*November 30th, 1644, Bamberg †November 30th, 1719, BonnFixed holidays (Christian feast day) which are celebrated on September 12th.
M = 1000 | D = 500 | C = 100 | XL = 40 | X = 10 | IX = 9 | IV = 4 | I = 1 |
Yes: 1644 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).