Happens Once Every Four Years

Look at the date today. Yeap, it's February the 29^th! (or ventinueve de Febrero in Spanish)

As all of you know, 2008 is a leap year. Every year divisible by 4 is a leap year, so every 4 years there is a February 29th, Right? Not exactly, because years that can also divisible by 100 is NOT a leap year, like 1700, 1800, 1900 except it is also divisible by 400. So years like 1600, 2000, 2400 is a leap year.

I could not imagine some people actually have to wait for 4 years to celebrate their actual birthday. >_<