December 21st, 1004 was a Friday.
November 23rd, 1004 - December 21st, 1004
Why not celebrate an alternative birthday? In 870 days, exactly on December 12th, 2028, people who were born on December 21st, 1004 will be 374,000 days old!
Fixed holidays (Christian feast day, Earliest usual date for the winter solstice in the Northern Hemisphere and the summer solstice in the Southern Hemisphere, and its related observances) which are celebrated on December 21st.
| M = 1000 | X = 10 | IV = 4 | I = 1 |
Yes: 1004 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).