Answer:
Between those years, the Holy Land went from being part of the Byzantine Empire, to being part of the Muslim Empires or Caliphates that formed since the death of Muhammad.
Explanation:
This affected relationships between people from the religions listed in the question, because while before, christians were the ruling group in the land, muslims became the rulers after their conquests.
The christians, both catholic and orthodox, saw Muslim control over the Holy Land as outrageous, because of precisely the fact that this land is considered Holy for Christians, because it is the place where Jesus was born and lived.
For this reason, from the 11th century onwards, the Pope launched a series of wars with the goal or retaking the Holy Land from Muslim control. These wars are known as the Crusades.
Red biennium, from 1919-1920
Social Darwinism viewed the wealthy aristocracy, or upper class, as having the most socially valued class. It was believed that social status was largely heredity. This means that the social classes were divided due to genetics.
Part of it was because of the Industrial Revolution and the invention of the cotton gin by Eli Whitney.
The critical World War I battles were fought primarily along the trench lines of France and Belgium.
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