What contributed to the ultimate failure of 16th century Spanish
expeditions to the north, in what is now the American West?
The unintended spread of European diseases to native populations
Lack of support from Spanish leadership, including the monarchy
Failure to find large deposits of precious metals like gold.
Patterns of unforgiving weather in the Rocky Mountains
In what way did the Crusades start a chain of events that led to
European discovery of the New World?
Which of the following groups sought to destroy vehicles of black
political organization during Reconstruction?