October 1st, 1021 was a Monday.
September 24th, 1021 - October 23rd, 1021
Why not celebrate an alternative birthday? In 31 days, exactly on July 24th, 2026, people who were born on October 1st, 1021 will be 367,000 days old!
Fixed holidays (Christian feast day) which are celebrated on October 1st.
| M = 1000 | X = 10 | I = 1 |
No: With 365 days 1021 is a normal year and no leap year.