What areas of the world fell under the control of
the Islamic Caliphate at its height?

What is the main social system that existed in ancient china?

Which type of constitutional power allows congress to regulate immigration and naturalization?

Which of the following statements about slavery is not accurate? a. slavery in the americas was no different than slavery in ancient greece or rome. b. beginning in the 1600s, slaves began to be viewed as property, rather than people. c. slavery did not originate in the americas. d. slavery was very important to the economy of the american colonies.