Social law.. Methods and trends that take place the course of habit and coincide with the nature of architecture or it Nwamis and laws that are subject to reality or social realities

Ibn Khaldun defines the social year as the methods and trends that take place in the course of the habit and the nature of the architecture or the noumas and the laws that are subject to realities or social facts, the Almighty said (the year of God in those who were before and the matter of God is destiny).
These Sunnahs are closely linked in a coherent systemic unit in coherence to a coherent universe system.