Nice Metal Core Scooter Wheels Can Someone Explain To Me The Diferent Genres Of Metal?

Can someone explain to me the diferent genres of metal? - nice metal core scooter wheels

I almost know a lot about music ... Well, rock, grunge and alternative.
Pissess from what I know nothing about metal, it is Death Metal, Metalcore, Thrash Metal, w / e. ..
I just want to know what they are, and I recommend some bands, because I'm starting to certain groups such as ... is considered to be metal.
a short history of metal would be nice .. like three sentences.