The europeans destroyed their way of life completely. they gave them diesies and death. Then they built an empire over their corpses. (please put as brainliest answer)
The permanent legacy of the crusades includes of having the
deep bitterness between the Muslims and Christians and that they have continued
and flourished of having to have and maintain commercial contact between the
Muslim people and the European people.
The question is a bit vague however one way that many people became rich is through the business of oil so that may be the answer your looking for
Transportation.
Carbon dioxide.
Quicker easier travel.
