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Why 4713 BC?

April 26, 2017Cycles time traced

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Why 4713 BC?

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found that they were all in the first year of their cyle in 4713 B.C. The three cycles are 15, 19, and 28 years long. By multiplying these three numbers (15 * 19 * 28 = 7980), he was able to represent any date from 4713 B.C. through 3267 A.D. The starting year was before any historical event known to him. In fact, the Jewish calendar marks the start of the world as 3761 B.C. Today his numbering scheme is still used by astronomers to avoid the difficulties of converting the months of different calendars in use during different eras. The following web sites: o http://www.openvms.compaq.com/openvms/products/year- 2000/leap.html o http://www.eecis.udel.edu/~ntp/ o http://www.nist.gov/ o http://www.boulder.nist.gov/timefreq/ o http://www.tondering.dk/claus/calendar.html o http://es.rice.edu/ES/humsoc/Galileo/Things/gregorian_ calendar.html are all good time-related resources, some general and some specific to OpenVMS.