When do the people have a right to change the government?

Which of the islamic empires (ottomans, mughals, safavids) were the most influential and why?

Which statement describes a similarity between the great migration and to this day

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.