Why Are There So Many Different Calendars?

How Was The Calendar Invented? http://bit.ly/1m6qu2o
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The Gregorian calendar is the most widely used calendar, but it’s far from being the only one. So what are the different types of calendars?

Learn More:
End of World in 2012? Maya “Doomsday” Calendar Explained
http://news.nationalgeographic.com/news/2011/12/111220-end-of-world-2012-maya-calendar-explained-ancient-science/
“It’s remotely possible the world will end in December 2012. But don’t credit the ancient Maya calendar for predicting it, say experts on the Mesoamerican culture.”

Calendar
http://www.britannica.com/science/calendar
“Calendar, any system for dividing time over extended periods, such as days, months, or years, and arranging such divisions in a definite order. ”

A Variety of Calendars
http://www.webexhibits.org/calendars/calendar.html
“Today almost everyone takes the precision of our calendars for granted, unaware of the long threads spooling out from our clocks and watches backward in time, running through virtually every major revolution in human science, all linked to the measurement of time. ”

The Islamic Calendar
http://www.webexhibits.org/calendars/calendar-islamic.html
“The Islamic calendar (or Hijri calendar) is a purely lunar calendar.”

Music Track Courtesy of APM Music: “Unraveled”

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