TODAY IS

TODAY IS

Rap singer Ja Rule hits the big 4-0. Or, in Leap Year birthdays, he's now 10.

Leap Day -- February 29 only occurs during a Leap Year. There's a Leap Year every four years, except for years ending in 00, in which case only if the year is divisible by 400.

First the salad then this? Julius Caesar established the leap year as part of his Julian calendar in 45 B.C. Caesar's astronomer, Sosigenes, developed the Julian calendar based on the fact that it takes the earth 365 days, 5 hours, 48 minutes and 46 seconds to revolve around the sun. This time was abbreviated to 365 1/4 days, and a calendar year was defined as 365 days, with one "leap day" added every four years to compensate for the lost quarter day.

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