The enlightenment philosophers believed that the power of government is derived from

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.

When conducting research for forming a hypothesis, which practice should historians follow?

What are new social classes emerged due to advancement in agriculture ?