Plato's Five Regimes
The Classical Greek philosopher Plato discusses five types of regimes. They are Aristocracy, Timocracy, Oligarchy, Democracy and Tyranny. Plato also assigns a man to each of these regimes to illustrate what they stand for. The tyrannical man would represent Tyranny for example. These five regimes progressively degenerate starting with Aristocracy at the top and Tyranny at the bottom.
Read more about Plato's Five Regimes: Aristocracy, Timocracy, Oligarchy, Democracy, Tyranny