# history of calendars

> aspect of history of how people have used calendars in methods for keeping track of days and larger divisions of time

**Wikidata**: [Q5867480](https://www.wikidata.org/wiki/Q5867480)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/History_of_calendars)  
**Source**: https://4ort.xyz/entity/history-of-calendars