Category:Calendars
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This category enumerates the various calendars used to mark time in the historical ages.
All modern calendars are divided into nine months, each month 4 weeks long, each week 10 days long, for a total of a 360 day year. Weeks are also called ten-days.
Pages in category "Calendars"
The following 5 pages are in this category, out of 5 total.