What major changes were made to European borders as a result of the Thirty Year's War? How are the borders different today?

Apurging of emotions, specially pity and fear

Which of the following led to a continuation of the treatment in the excerpt above? a)the brutality of the trans-atlantic african slave trade. b)spanish repression after violent native uprisings in new spain during the 16th century. c)european competition to quickly establish colonial holdings in the new world. d)the reliance of the spanish on native americans to provide labor under the encomienda system.

Explain how social darwinism impact imperialism.