Which figure was the biggest catalyst in the california gold rush?

What was an immediate effect of the protestant reformation

Describe the social and economic effect of world war on england and usa

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.