Short terms effect on independence of Mexico

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 does the document of the birtish octopus is an uderlying cause of the world war 1

In 1819, what did the united states obtain from spain for $5 million?