Why do you think that the middle East had a monopoly of the species and why were they so desirable to the Europeans ( No links) please help

Approximately how many europeans jews died in the nazi concentrations camps and death camps

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.

What was the earliest settlement shown on the map?