February 29, also known as Leap Day, is a quirky calendar occurrence that has been utilized for more than 2,000 years.
The people born on this day are only able to celebrate their actual birthday every four years, when an extra day is added to keep the calendar synchronized with the astronomical year, which is approximately 365 1/4 days long.
Folks with a Leap Day birthdate are part of a small and select group bound together by a curious astronomical quirk, and many members of the sports world are privy to the party.