Where did lewis and clark cross the continental divide?

What is zinn's approach to the study of history? what does he suggest occurs when history is told is the story of human progress?

What are contributions made by francis bacon

Why might the spanish government have approved of the encomienda system? a the system allowed for fair treatment of all under it, leading to a happy and prosperous colony. b the system used natives as slaves which meant the government was able to maximize their profit of exported goods. c the system allowed for mostly profitable trade within the different colonies. d the system was a great example of how to successfully run a colony, making spain a world power.