The creators of the Julian calendar decided to reform ... So, what do you do when your birthday disappears from the calendar? On a non-Leap Year, some leapers choose to celebrate the big day ...

The Julian calendar was revised by specifying that ... When leapers celebrate birthdays in non-leap years What it’s like to be born on a leap year A non-leap brings a labyrinth of confusion ...

In 1752, from Sept. 3rd to 13th, people witnessed a unique historical event. Eleven days were cut from the calendar and deleted forever.