That is the Upper Paleolithic Period.
It reflects the principle of federalism
Because they are a federation, the congress cannot decide for themselves without the approval of states. State have their own legislation and desires and the congress has what they believe is best for everyone. This is the principle of federalism because they would not go to war without getting approval of the states.
Luther Standing Bear was a Sicangu and Oglala Lakota chief notable in American history as a Native American author, educator, philosopher, and actor of the twentieth century.