What would einstein's famous e=mc2 equation became the basis of development for?

What words or phrases does marx use to indicate that marxist communism has international and worldwide goals

Unlike european immigrants, chinese immigrants in the 1800s faced

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.