What was the purpose of french revolution

Will give brainliest what changes took place in the soviet union and eastern europe after ww2

Which term best describes the progressive era

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.