What does this drawing represent 1868

Are there any english colleges in south korea for americans that is international ?

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 best describes the impact of the crusades on european exploration?