A Leap Day, February 29, is added to the calendar in Leap Years. This extra (intercalary) day makes the year 366 days long – and not 365 days, like a common (normal) year. Leap Years occur nearly every 4 years in our modern Gregorian Calendar.
Leap Day as a concept has existed for more than 2000 years, and is still associated with age-old traditions, folklore and superstition. One of the most popular traditions is that women propose to their boyfriends.