What was the primary cause of aksum rise to greatness

How was rockefeller able to build his monopoly across the oil industry? he found newer and cheaper ways to refine oil, increasing his profits. he confined his business to ohio so he could buy all the refineries there. he bought up oil refineries, cut costs, and reinvested his profits in other refineries. he began to sell kerosene as well as oil, expanding his market.

After the french and indian war how did enland try to pay for the cost of the war

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