Hoe Many Weeks in a Year

Hoe Many Weeks in a Yearの基本情報から最新動向までを一挙に解説しました。

The concept of a week is actually a human invention, and it's actually pretty recent - actually, it dates back to ancient Mesopotamia, around 2000 BCE. The Babylonians divided the month into 4 weeks, with each week having 7 days, which was probably inspired by the 7 visible celestial bodies in the sky: the Sun, Moon, Mars, Mercury, Jupiter, Venus, and Saturn. Who knew our modern calendar had such a rich and fascinating history?

Now, you might be wondering, why did the Babylonians choose 7 days for a week? Well, one theory is that it was connected to the lunar cycle, with the 7 days corresponding to the different phases of the Moon. Another theory suggests that the number 7 was considered sacred, and the Babylonians wanted to create a sense of rhythm and harmony in their calendar. Whatever the reason, it's clear that the 7-day week has become an integral part of our modern lives.