It's that time again: Thursday, February 29, is a leap day, the calendar oddity that occurs (almost) every four years. For centuries, attempts to sync calendars with the length of the natural year ...

She was so impressed by Ayanna and Katie's explanation, she will be teaching her high school students the leap year lesson Thursday. Thursday is Feb. 29, or Leap Day. As we know, it only comes ...

(Picture: Getty/Metro.co.uk) Leap Years occur pretty much every four years ... or learn from someone else’s mistakes. Extract the life lesson. Don’t judge too harshly. And move along.