October 31st, 1064 was a Monday.
October 24th, 1064 - November 22nd, 1064
Why not celebrate an alternative birthday? In 734 days, exactly on July 29th, 2028, people who were born on October 31st, 1064 will be 352,000 days old!
Fixed holidays (Christian feast day, Halloween and related celebrations) which are celebrated on October 31st.
| M = 1000 | L = 50 | X = 10 | IV = 4 | I = 1 |
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).