October 1st, 1020 was a Sunday.
September 24th, 1020 - October 23rd, 1020
Why not celebrate an alternative birthday? In 633 days, exactly on April 19th, 2028, people who were born on October 1st, 1020 will be 368,000 days old!
Fixed holidays (Christian feast day) which are celebrated on October 1st.
| M = 1000 | X = 10 | I = 1 |
Yes: 1020 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).