The answer is "social contract theory".
It is the willful understanding among people by which, as per any of different speculations, as of Hobbes, Locke, or Rousseau, sorted out society is carried into being and contributed with the privilege to anchor shared security and welfare or to direct the relations among its individuals.
Chinese Exclusion act of 1882
Answer:
Musa I (1312-1337), commonly referred to as Mansa Musa, was the tenth mansa, which translates as "king of kings" or "emperor", of the Empire of Mali. At the time of Musa's accession to the throne, the Malian Empire consisted of territories formerly belonging to the Ghanaian Empire and Mali and surrounding areas, Musa obtained many titles, including Emir of Mali, Mines Lord of the Uangaras, and conqueror of Ganata, Futa Jalom, and at least another dozen states. He was recognized as the richest man in history.