What were the Greek and Roman ideas of government?

ancient Rome had a strong government in which there were many branches and a leader. Like Ancient Greece, Rome used a democracy as a type of government. Other parts of Rome might have used a Dictatorship, where one leader makes all the choices for everyone. As we have today, the ancient Romans had a Senate. We actually based our government off of theirs. So if you are unsatisfied with my answer(submitted by an 11 year old girl) you might want to search our government. Maybe that'll help.