Generally speaking it would be "political science" that is the academic discipline that focuses on the study of the roles and functions of government, although in some institutions the major is simply "government".
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Answer:
a body of fundamental principles or established precedents according to which a state or other organization is acknowledged to be governed.
Explanation:
C. Alexander the Great
Alexander the Great established one of the largest Empires in history. First, he began by fighting and defeated the Persian Empire. He actually conquered Egypt and founded Alexandria in doing so. He then marched towards Mesopotamia and conquered Babylon.