May 3rd, 1421 was a Thursday.
People born on May 3rd, 1421 (assuming the person is still alive) would have turned 605 years old this year (2026).
April 21st, 1421 - May 21st, 1421
Why not celebrate an alternative birthday? In 997 days, exactly on February 24th, 2029, people who were born on May 3rd, 1421 will be 222,000 days old!
Fixed holidays (Christian feast day, Finding of the Holy Cross-related observances) which are celebrated on May 3rd.
| M = 1000 | CD = 400 | X = 10 | V = 5 | I = 1 |
No: With 365 days 1421 is a normal year and no leap year.