How people were left homeless after the tri state tornado devastated 164 sq mi of land?

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.

Why was the agricultural revolution more successful in england than in the rest of europe?

Analyze how napoleon used a coup d'etat to establish absolute rule.