October 6th, 1264 was a Monday.
September 24th, 1264 - October 23rd, 1264
Why not celebrate an alternative birthday? In 759 days, exactly on August 22nd, 2028, people who were born on October 6th, 1264 will be 279,000 days old!
Fixed holidays (Christian feast day, Yom Kippur War commemorations) which are celebrated on October 6th.
| M = 1000 | C = 100 | L = 50 | X = 10 | V = 5 | IV = 4 | I = 1 |
Yes: 1264 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).