Josiah Strong (1847–1916) was a clergyman and writer who preached of the saving power of Protestant religious values. He's best known for his book, Our Country: Its Possible Future and Its Present Crisis, in which he urged Anglo-Saxons to "civilize and Christianize" the American West.
Answer:
The Crusades generated an economic boom in Europe and the Middle East.
The Crusades created an increase in the demand for Near East spices.
Explanation:
The Crusades, which were a armed conflict between Christian Europe and Muslim Middle East, had the positive effect of increasing interaction between the people of these regions.
This interaction allowed the creation of new trade networks. Italian cities like Venice were specially good at trade and began to prosper.
The higher demand for goods from the Near East like spices, prompted the development of even more trade networks, and this brought about an economic boom in both Europe and the Middle East.
I would need either answer choices or more details. Violence can lead to many things... People could start riots , burn down idols and religious places of the opposite race. (More details would help. :) )