How were people who fought for the Union Army (North) able to think so highly of Lee, someone who fought for the South and essentially slavery?

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.

Apurging of emotions, specially pity and fear

What did the japanese regard as the main purpose of the attack