Why do we even have a leap year? (Get ready to do some math)

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Why do we even have a leap year? Get ready to do some math

In 45 B.C. a decree by Julius Caesar began the practice of adding an extra day every four years, with the creation of the Julian calendar -- making up for those quarter days.

That would be perfect if a solar year were exactly 365 ¼ days -- but 365.242 is a teeny bit less than that, and over time that teeny bit adds up. By 1582 A.D. that slight discrepancy in the Julian calendar added up to 10 days. So Pope Gregory XIII created the Gregorian calendar, coined the term"leap year" and established February 29 as the official date to add to a leap year. He also introduced a rule to take into account the discrepancy in the Julian calendar.

Now, a leap year occurs in every year that is divisible by four, but only in century years that are evenly divided by 400. Therefore, 800, 1200 and 2000 were leap years - but 1700 and 1900 were not, because even though they are divisible by four, they are not divisible by 400.Well, not entirely. The solar year is approximately 26 seconds shorter than the Gregorian year at the moment -- but that's a problem for another day.

 

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leap year? well its time be at home and give the girls a day to go out and court the boys...hehehe! awesome?

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