All of the western imperialist powers allowed local rule. t or f

What is walt whitman's poem "when i heard the learn'd astronomer about?

This was an order issued during the civil war by president lincoln ending slavery in the confederate states

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.