Social dynamics (or sociodynamics) can refer to the behavior of groups that results from the interactions of individual group members as well to the study of the relationship between individual interactions and group level behaviors.
This is the Definition of sociodynamics.
the question seems incomplete. Please give the full question.
Answer: We don't truly know, but we know by scientific and religious data that was gradually developed by a force (it could be nature force or a force of some God)
