Political science is broadly conceived as the study of the institutions of government and the activity of political. Political science is concerned with the study of the state, government, and political. Aristotle defined it as the study of state. Political science intersects with other fields; including anthropology, public policy, national political, economics, international relations, comparative political, psychology, sociology, history, law, and political theory. Political science has ancient roots; indeed, it originated almost 2,500 years ago and presumably stared with the works of Plato and Aristotle.