Describe the causes and impact of the crusades on the islamic world and europe

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.

What is the ancient chinese belief that god chooses the emperor?

What was the earliest settlement shown on the map?