How to make a song about classroom rules in history class

What was an immediate effect of the protestant reformation

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.

Before world war 1 started, austria-hungry was wary of (spain or serbia) because of border disputes