What is something significant about harpers ferry

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.

Where did zebulon pike spend most of his time exploring?

The 1884 amendment added onto the chinese exclusion act included what additional stipulation? the law would apply to ethnic chinese regardless of which asian country they originated from. the law would provide newly arrived chinese immigrants with land in the oklahoma territory. the law would establish all chinese americans as permanent aliens and deny them citizenship. the law would prohibit chinese immigrants from reentering the united states once they exited.