Muqaddimah
ʿAsabiyyah

The concept of " ʿasabiyyah " (Arabic: "tribalism, clanism, communitarism", or in a modern context, "group feeling", "social cohesion", "solidarity" or even "nationalism") is one of the best known aspects of the Muqaddimah. As this ʿasabiyyah declines, another more compelling ʿasabiyyah may take its place; thus, civilizations rise and fall, and history describes these cycles of ʿasabiyyah as they play out.

Ibn Khaldun argues that each dynasty has within itself the seeds of its own downfall. He explains that ruling houses tend to emerge on the peripheries of great empires and use the unity presented by those areas to their advantage in order to bring about a change in leadership. As the new rulers establish themselves at the center of their empire, they become increasingly lax and more concerned with maintaining their lifestyles. Thus, a new dynasty can emerge at the periphery of their control and effect a change in leadership, beginning the cycle anew.
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