These fractions can be used to construct a lunar calendar, or in combi... - dofaq.co
lunar calendar

These fractions can be used to construct a lunar calendar, or in combi...

wikipedia - 23 Jan 2023
These fractions can be used to construct a lunar calendar, or in combination with a solar calendar to produce a lunisolar calendar. A 49-month cycle was proposed as the basis of an alternative Easter computation by Isaac Newton around 1700.[7] The tabular Islamic calendar's 360-month cycle is equivalent to 24×15 months, minus a correction of one day.

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