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A polity is a politically organized unit, essentially a form of political organization. This unit is defined by boundaries set by political authority and typically has its own separate political structure. The most prevalent type of polity in the modern world is the nation-state, with over 190 countries globally, each claiming sovereignty and seeking obedience from its citizens.12345

Polities can be classified in various ways, including by the number of rulers (one, few, or many), by their key institutions (like parliamentarism or presidentialism), or by their principles of legitimacy (traditional, rational-legal, or charismatic). Historically, classifications by Plato and Aristotle distinguished between ideal and perverted forms of government based on the rulers' adherence to law and the common good.3

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