December 1st, 1040 was a Tuesday.
November 23rd, 1040 - December 21st, 1040
Why not celebrate an alternative birthday? In 999 days, exactly on April 20th, 2029, people who were born on December 1st, 1040 will be 361,000 days old!
Fixed holidays (Christian feast day, World AIDS Day, and its related observances) which are celebrated on December 1st.
| M = 1000 | XL = 40 | X = 10 | I = 1 |
Yes: 1040 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).