1) riches - yes, this is correct!
2) <span>gain control of the Holy Land from Muslim control - this was the "real", official reason, what people openly admitted
and I think that the third one will be adventure, as neither trade routes nor political freedom played a role in the Crusades.
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Greek and roman are root words in many lang because... the Romans adopted Christianity and had a large empire, a lot of Christians had to learn roman if there area was taken over <span />