February 29, or Leap Year, comes around every four years.
Many people have been born on Leap Year, such as the baseball player, Al Rosen.
On the years that there is no February 29th, those born on that day usually celebrate their birthday either on February 28th or March 1st.
According to the book, Guinness World Records, the Henriksen family of Norway holds the record for most siblings born on leap year.
Karin Henriksen gave birth on February 29 three times, to Heidi in 1960, to Olav in 1964 and to Lief-Martin in 1968.