Did European Imperialism conquer? Yes. Did Communism take peace from the earth? Yes. Does OPEC have something to do with oil? Yes, but the prophecy of Revelation could be speaking about a different type of oil like olive oil that was more prevalent and useful then.
Is this what the prophecy of Revelation is about? Well, when it comes to prophecy, we can often only give a "definite maybe" until after it all happens.
Have there been famines and war and death in the past? Yes. However, a good many Biblical scholars see the fulfillment of these prophecies as yet future, because it is believed that these will be worldwide issues and not limited in scope.