How Old is the Calendar?
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- Опубликовано: 1 окт 2024
- Some version of a calendar has been around since 3100 BC in ancient Mesopotamia. Since then, many different types of calendars have been used around the world, including most commonly the Gregorian calendar. Here's a deep dive into the history of calendars!
Learn more about calendar history!
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Learn all the different types of calendars!
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