RT @fermatslibrary

Here's why the circle has 360 degrees: around 2400 B.C., the ancient Sumerians noticed the Sun's annual path across the sky was ~ 360 days. In order to track the Sun's motion, they decided to divide the circle in 360 degrees. t.co/IIy8uoCC16


@shibaprasad That's an interesting post, thank you!

We owe the Sumerians and Assyrians for the 60 seconds in a minute, 60 minutes in an hour too.

Their invention, which lives on so long after. Amazing.

I have a really nice Maths book that has some creative ways to teach; one of the pages has a photograph of a Sumerian clay tablet, with the cuneiform writing they used.

And it questions if you can discern a patter. A curious mind will. I loved it, imagine using in class with bright students.

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