Explain three pop culture elements from East Asia that have become more popular in the United States

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.

The ottoman kingdom began in the region of anatolia

What were two theories put forth by marx?