Which helped to bring about an increase of trade within western Europe during the 11th and 12th centuries?
a. Increase in population
b. The split between the eastern and western Christian churches
c. The end of the Crusades
d. The Viking invasions
It was mostly "c. The end of the Crusades" that helped to bring about an increase of trade within western Europe during this time, since this period had been previously dominated by mass violence that disrupted trade routes.
