October 20th, 1064 was a Thursday.
September 24th, 1064 - October 23rd, 1064
Why not celebrate an alternative birthday? In 723 days, exactly on July 18th, 2028, people who were born on October 20th, 1064 will be 352,000 days old!
Fixed holidays (Christian feast days) which are celebrated on October 20th.
| M = 1000 | L = 50 | X = 10 | IV = 4 |
Yes: 1064 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).