Venice and Florence emerged as key centers of trade in the Mediterranean, based on the trade of silk, cotton, wool and spices. The Italian city-states were the bridge between the Byzantine Empire, Western Europe, North Africa and the Middle East.
Well Industrialization began and both were receiving mass amounts of immigrants.
The reason why D<span>escartes decided to set aside everything that he had learned and begin again was because he doubted everything that he learned--since he was always questioning everything to begin with. </span>
That many of the students wouldn't eat it and waste of resource