<span>The idea of a social contract came about during the Age of Enlightenment that looks at how legitimate the authority of the state is over individuals and how society began. It argues that people forfeit some of their freedom to the government in exchange for inalienable rights.</span>
The answer is solar plexus ! :)
Decline of Sumer:
Poor irrigation reduced agricultural yields.
Population moved.
Elamite invasion.
They all worked together for a small time, but then the colonists and settlers got greedy and fought the Native Americans for their land. They pushed the Native Americans off or made them work for the settlements (mainly in New Mexico).
