Answer:
Pope Urban II called for all Christians to unite and fight the Muslims to regain control of the Holy lands. After four Crusades, the Muslims won control of the Holy Lands. However, the crusades resulted in increased trade in Europe and the development of towns.
Explanation:
A..... I learned about this last semester :)
<span>the father of psychoanalysis</span>
G was first measured by henry cavendish, the newspaper report it as the weighing of the earth experiment. because when henry cavendish measured the value of G, this allows physicist to calculate the mass of the earth using the newton's law of gravitation.