Thanks the Babylonians. They had a number system based on 60. They took a hexagon and circumscribed a circle around it and found that the circumference around the hexagon is exactly
http://www.ask.com/webanswers/Science/Mathematics...

It's just a convention It's just a convention. Mathemeticians could have chosen some other number, but 360 is divisible by many whole numbers, so it is convenient. Answer It has some
http://wiki.answers.com/Q/why+are+circles+360+degr...

In 1936, a tablet was excavated some 200 miles from Babylon. Here one should
http://www.chacha.com/question/whyarethere360d...

Hector's guess is right. The Babylonians counted in two types of ways. First, the one we are all used to, by tens. Second, they also counted in bases of 60. This is called sexagesimal
http://www.quora.com/Whodecidedtherewere360de...
