October 21st, 1016 was a Monday.
September 24th, 1016 - October 23rd, 1016
Why not celebrate an alternative birthday? In 192 days, exactly on February 3rd, 2027, people who were born on October 21st, 1016 will be 369,000 days old!
Fixed holidays (Christian feast day) which are celebrated on October 21st.
| M = 1000 | X = 10 | V = 5 | I = 1 |
Yes: 1016 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).