A) white supremacy. columbus was a racist so that makes sense
It is needed to keep balance in a nation's economy, and between the economies of multiple countries. I should be able to purchase stock, and make a good return.
It is not an exaggeration to say that the US underwent a "transportation revolution" during this time. Before paved roads occurred, it cost practically the same amount to ship something to Europe as it did to send it on land in the US. Paved roads of course increased economic output but making the transfer of supplies much easier.
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Rubber is coagulated sap; the French word for it, Cãoutchouc, comes from a South American Indian word meaning "the wood that weeps." The wood that weeps in the Congo was a long spongy vine of the Landolphia genus.
