!!! Overview [1]
[{$pagename}] is a unit of [time], used with calendars, which is approximately as long as a natural period related to the motion of the Moon; month and Moon are cognates. 

The traditional concept arose with the cycle of moon phases; such [months] (lunations) are synodic [{$pagename}]s and last approximately 29.53 [days]. From excavated tally sticks, researchers have deduced that people counted [days] in relation to the Moon's phases as early as the Paleolithic age. Synodic [{$pagename}]s, based on the Moon's orbital period with respect to the Earth-Sun line, are still the basis of many calendars today, and are used to divide the [year].

!! Julian and Gregorian [calendar]s
The Gregorian calendar, like the Julian calendar before it, has twelve [months]:
%%zebra-table
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||Chronology||Alphabetic||[Days]
|1|January|31
|2|February|28 or 29 in leap years
|3|March|31
|4|April|30
|5|May|31
|6|June|30
|7|July|31
|8|August|31
|9|September|30
|10|October|31
|11|November|30
|12|December|31
/%
/%
/%



!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [Month|Wikipedia:Month|target='_blank'] - based on information obtained 2017-10-14-