Why were writing and art important to the Neolithic society?

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.

How have changes in transportation affected washington, d.c.

List two reason that james k.polk gives for supporting the annexation of texas