“The ancient civil Egyptian calendar, known as the Annus Vagus or "Wandering Year", had a year...Egyptian calendar
“The 60 Week or 6 Day Week Calendar features a six-day week consisting of three-day work weeks...60-Week Calendar
“The Soviet revolutionary calendar was in use in the Soviet Union from 1929 to 1940. Shortly...Soviet revolutionary calendar
Pages in category "30-day month calendars"
The following 19 pages are in this category, out of 19 total.