Why do we need an extra day?
February 29th is Leap day; this is an extra day added to the Julian calendar every 4 years, or years that are evenly divisible by four. A leap year is necessary in order to keep our calendar in sync with the seasons and astronomical events. An ordinary or common calendar year has 365 days, however, the Earth takes approximately a day and a quarter to complete a rotation around the Sun. Therefore an extra day every four years brings us back into alignment.
While Leap Day is not an official holiday, there are traditions associated with this day. I believe Leap Day is a special day, and not just if you were born on 29th February, so look at positive things you can do on this day that only comes around once every 4 years.
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