They were constructed to move the roman military

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.

Using complete sentences, compare and contrast the leadership and accomplishments of martin luther king, jr. and frederick douglass.

Describe the causes and effects of the war powers act.