1928 Calendar 13 Months

1928 Calendar 13 Months - The international fixed calendar is a solar calendar with 13 months of 28 days each. Find out how it was. Learn why this innovative system lasted until 1989 and its impact on business efficiency. It is a perennial calendar as every date is fixed to the same weekday every year.

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The international fixed calendar is a solar calendar with 13 months of 28 days each. It is a perennial calendar as every date is fixed to the same weekday every year. Find out how it was. Learn why this innovative system lasted until 1989 and its impact on business efficiency.

Find Out How It Was.

The international fixed calendar is a solar calendar with 13 months of 28 days each. It is a perennial calendar as every date is fixed to the same weekday every year. Learn why this innovative system lasted until 1989 and its impact on business efficiency.

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