10 Strange February 29 Facts You Probably Didn't Know

Every four years, we get an extra day, and yesterday was one of those days. You can call it strange or interesting, but here are some facts about February 29 that we believe you should be aware of...

1. Every four years, a leap year occurs, and February 29 is added to the calendar.

2. We have a leap year because the earth's orbit around the sun takes exactly 365.2422 days to complete, but the Gregorian calendar uses 365 days.

3. The leap day is added to February because it only has 28 days, whereas the other months have 30 or 31 days.

4. February 29th is also Rare Disease Day.

5. If you are paid on an annual basis, you technically work for free on leap years.

6. Margaret of Scotland declared in 1288 that on a leap day, a woman may propose to any single man.

7. If the man refused a proposal for a leap day, he would be fined.

8. People born on a leap year are known as "leapers" or "leaplings."

9. Getting married on a leap year is considered unlucky in Greece.

10. One in 1,461 people are born on a leap year.