World History Encyclopedia
World History Encyclopedia: Ancient Greek Government
Describes the diversity of governments in ancient Greece and the four main types that existed - democracy, monarchy, oligarchy, and tyranny.
Wikimedia
Wikipedia: Government
This Wikipedia encyclopedia site examines a wide range of different forms of governments that have been suggested and/or used in practice. Topics include anarchism, autocracies, meritocracies, monarchies, democracies, republics,...