October 31st, 1104 was a Monday.
October 24th, 1104 - November 22nd, 1104
Why not celebrate an alternative birthday? In 343 days, exactly on July 4th, 2027, people who were born on October 31st, 1104 will be 337,000 days old!
Fixed holidays (Christian feast day, Halloween and related celebrations) which are celebrated on October 31st.
| M = 1000 | C = 100 | X = 10 | IV = 4 | I = 1 |
Yes: 1104 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).