When the united status used a gold standard the us dollar

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.

What groups are bryan drawing a contrast between ? check all that apply a. people in the city and people in the country b. people who are educated and people who are not c. people who are in favor of free silver and people who want the gold standard d. people who work and people who don't

According to the article, what did plato and aristotle have in common?