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. https://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.
