I like to play the Violin. I started because I heard it's called a fiddle. 
I thought a violin and a fiddle were two different things
Same! When I found out the term fiddle came from early American settlers I knew I wanted to play one. 
Oh I see, is there any differences in the term, like would a fiddle be only used in folk music and a violin in classical?
It would make sense that musicians that play those genres would prefer one term over the other. Especially when you consider classical music involves Violas as well. 
Oh yes, I see now. So, when was the fiddle invented? Do you know?
I'm not sure exactly but Classical music emerged in full force in the 1700s, so probably before or during that time.