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| Babylonian, Jewish, Muslim, Luni-Solar, Indian, Iranian Calendars |
 | | The beginning of the month in the Babylonian calendar was determined by the direct observation by priests of the young cresecent moon at sunset after the astronomical New Moon. |
 | | For a lunar calendar adjusting to the solar year, the best approximations (by continued fractions) to the difference between twelve synodic months and the tropical year would be to add one month every three years, three every eight, four every eleven, seven every nineteen, or 123 every 334. |
 | | While the religious Islâmic calendar is of course used in Irân, the ancient solar calendar also continues to be used as a civil calendar. |
| www.friesian.com /calendar.htm (8375 words) |
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