How did the arrival of arab traders influence life in eastern africa

Why did joining the american cause have the potential to alienate lafayette and disgrace his family

Which of the following was a similarity between classical mesoamerican and south american civilizations ?

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.