’Leap Day’ is February 29, which is an extra (intercalary) day added during a Leap Year, making the year 366 days long – and not 365 days, like a common (normal) year. Nearly every 4 years is a Leap Year in our modern Gregorian Calendar.
Ever since Leap Years were first introduced over 2000 years ago with the transition from the Roman Calendar to the Julian Calendar in 45 BCE (Before Common Era), Leap Day has been associated with age-old Leap Day traditions and folklore.
