The events that occurred in Europe and Asia that led to change during the Middle Ages are :
1. The <em>invention of the modern sail</em> revolutionized trade.
2. The <em>creation of banks and paper money</em> and
the rise of the middle class and individualism made possible by trade.
3. Power was no longer exerted by the Church alone as trade had made a <em>rich class of land owners</em> and <em>tax payers </em>who wanted power also.