I would like to raise a slight concern about the treatment of this question.
Yes, it's a bad question, and, no, we're not here to do people's homework for them. But the sheer naivete suggests the OP is very young and drove me, (rightly or wrongly) to do a quick Google and suggest a few starting points. It is, after all, not a particularly easy question to research.
But the question was almost immediately - and understandably - put on hold, and by some of the leading contributors, whose depth and breadth of expertise overawe me. However I do have some concerns that instantly shutting down such questions from embryonic historians could be counter-productive in the long term. We want to encourage historical enquiry, don't we?
I am quite sure I have asked stupid questions, and given stupid answers, on occasions, but people have been kind enough not to say so!
Should we not give younger members a little more leeway? Discuss ;-)