It all started with the

**Babylonians**. You see, they used a

**number system**with a

**base of 60**, instead of using a base of 10 like we do. That system is called the

**sexagesimal system**.

They realized that it took approximately

**360**days for the sun to

**circle**the earth. At least that's what they thought. We now know it takes 365.25 days for the earth to circle the sun, but that's beside the point... The

**Babylonian**

**calendar**had

**360 days**in a year, which is fairly close to 365. They divided their calendar into 360 degrees to keep track of daily passage of the sun's journey.

You know that in a

**full circle**there are

**360 degrees**. But did you know that

**each degree is split into 60 parts**, 1/60 of a degree? They are called

**minutes**. Minutes are also split into 60 parts called seconds. Every

**second is 1/60 of a minute**.

When you think about it, the way we measure **time** is also **divided into 60's**. 60 seconds in a minute, 60 minutes in an hour.

360 also has a lot of factors; 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, just to name a few. That makes it easier to work with.

**Well, I hope you learned something form my post. Thanks for reading. Please comment :D**

## 2 comments:

Great Job Kristin! You did a great job comparing the time, and you made me think of how everything in time is in 60's. Great job again!

WOW, AMAZING POST ! (: I LOVE your pictures, especially the clock one.. it looks cool. I also like the colourfulness and your explanation on why 360.

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