Throughout human existence, the subject of power, politics and government has been very contentious as it often has a bearing on the quality of life and people’s hopes and aspirations. Fundamentally, then, Political Science examines the origin, development and operation of political systems using historical, comparative, interpretative, critical, quantitative and qualitative methods. While it studies and analyses current political issues, Political Science dates back to the ancient world, having been shaped by the works of Plato, Aristotle, Machiavelli, Hobbes and Locke among others. Sub-disciplines in Political Science include Political Theory, Political Ideology, Political Philosophy, Political Economy, Policy Study & Analysis, Comparative Politics and International Relations. Altogether, these sub-disciplines may be used to investigate or address issues such as executive power, human rights, elections, legislation, public opinion, foreign policy, propaganda and war