There were eight or nine crusades, though only the first four were of any importance. The Crusades were Christian military expeditions mounted to wrest the Holy Land from the Muslims who had conquered it.
Answer:
Who first discovered and dug up the mass grave
Explanation:
Necessary simply states that congress has power , to make all laws which shall be necessary and proper for carrying into execution by foregoing powers,
A. China began to profit greatly from selling opium in Europe
