Which of the following 19th-century figures is known for opening japan to u. s. trade?
a)franklin d. roosevelt
b)francis xavier
c)matthew perry
d)sato eisaku

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.