Article 1, Section 8, Clause 3 of the U.S. Constitution, which gives Congress the power “to regulate commerce with foreign nations, and among the several states, and with the Indian tribes.”
I believe within its regulated in a much more local way, like states and then within towns and then cities,etc. This is my guess though for the "within" Part
The paleolithic period (also called the old stone age) is an ancient cultural stage where there where usage of rudimentary chipped stone tools
They are offered to students based on their GPAs; one way of measuring merit in schools.
1. Forced migration of native Americans.
2. Creation of US style federalism.
4. Unsanitary living conditions