Answer: Athens developed a form or direct democracy, perhaps the oldest democracy in the world. In this democracy, a few citizen, mainly land-owning men, met in a central place: the agora, to discuss important matters about the city and take political decisions.
Rome developed The Republican form of government. The two main social classes of Roman society, the Plebeians and the Patricians, send representative to the Roman deliverative body: the Senate, where the main discussion and political decision were taken.