September 12th, 1261 was a Monday.
August 24th, 1261 - September 23rd, 1261
Why not celebrate an alternative birthday? In 454 days, exactly on July 29th, 2025, people who were born on September 12th, 1261 will be 279,000 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, BethlehemDuke of Lower Bavaria and King of Hungary (1261-1312)
*February 11th, 1261, Burghausen †November 9th, 1312, LandshutEnglish baron
*March 1st, 1261, England †October 27th, 1326, BristolQueen of Norway
*February 28th, 1261, Windsor Castle †April 9th, 1283, BergenBishop of Exeter; Lord High Treasurer of England
*February 1st, 1261, Annery kiln †October 15th, 1326, LondonFixed holidays (Christian feast day) which are celebrated on September 12th.
M = 1000 | C = 100 | L = 50 | X = 10 | IX = 9 | I = 1 |
No: With 365 days 1261 is a normal year and no leap year.