# Why do we count in sevens?

**Why do we count in weeks of seven days?**

A day, a month and a year follow the sky. The week follows none of those cycles. Where it began is debated, and many cultures have used other lengths. verify

Connects to:
- [Calendars](https://mapideas.org/i/ti_calendars)
- [Day, month, year](https://mapideas.org/i/ti_daymonthyear)
- [Records of the sky](https://mapideas.org/i/hi_skyrecords)

Sources:
- [Wikipedia: Week](https://en.wikipedia.org/wiki/Week)

Source: https://mapideas.org/i/q_time_week · open on the map: https://mapideas.org/#q_time_week