<span>The reason and cause of the crusades was a war between Christians and Muslims which centered around the city of Jerusalem and the Holy places of Palestine.</span>
Answer:
It was the main cause as all great European powers wanted to spread their imperialistic and colonial power.
Explanation:
After Italy and Germany were unified European political scene was totally different. Old powers felt threatened by the rise of these countries, while on the other side, Germany and Italy, together with Austria-Hungary wanted to strengthen their role.
After the Berlin Conference it was obvious that France and Britain had dominance in the colonies, therefore the so-called Central Powers wanted to rearrange this.
Entente powers didn't wanted to change their stance and it was just a question of time when the world will begin.
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Wake up to reality! Nothing ever goes as planned in this world. The longer you live, the more you realize that in this reality only pain, suffering and futility exist.- Madara Uchiha
In New York, it was "Ellis Island" were immigrants were processed into this country, since many immigrants arrived with very little background information, and had to be "sorted".