December 20th, 1021 was a Thursday.
November 23rd, 1021 - December 21st, 1021
Why not celebrate an alternative birthday? In 131 days, exactly on October 12th, 2026, people who were born on December 20th, 1021 will be 367,000 days old!
Fixed holidays (Christian feast day, Earliest date for Winter solstice's eve) which are celebrated on December 20th.
| M = 1000 | X = 10 | I = 1 |
No: With 365 days 1021 is a normal year and no leap year.