They're "carpetbaggers," which was named after the cheap bags they usually carried.
He thought a united front would be more effective in the battle against the entrenched Catholic Church.
Answer: Tigris and Euphrates
Explanation:
Mesopotamia. Mesopotamia was the earliest river valley civilization, starting to form around 3500 BC. The civilization was created after regular trading started relationships between multiple cities and states around the Tigris and Euphrates Rivers. Mesopotamian cities became self-run civil governments.