Upton Sinclair hoped people would focus on , but found people instead focusing on .

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.

Which of the follow modern activities would only have been possible after the neolithic revolution

What change took place in the african slave trade in the 1500's?