Reasons for opening up new routes:

Economic roots:/kloc-After the 5th century, the development of commodity economy and the germination of capitalism in European countries led to an increase in the demand for money, and the demand for gold in minting money increased day by day. Businessmen and the emerging bourgeoisie need gold to expand their capital, and the upper class needs to increase their income to buy more luxury goods.

Social roots: The Travels of Marco Polo describes the wealth and prosperity of China, as well as the rich gold and jewels in eastern countries. Its spread has prompted many Europeans to think of the East to realize their golden dream.

Business Crisis:/kloc-In the middle of the 5th century, the Ottoman Empire occupied the Balkans and Asia Minor, cutting off the only traditional trade route between Europe and Asia. They plundered in the eastern Mediterranean and imposed heavy taxes on transit goods. As a result, the goods were not only small in quantity, but also high in price. Therefore, businessmen and nobles in European countries are eager to bypass the eastern Mediterranean and open up a new direct air route to India and China.

[Problem solving process]

The germination of capitalism provides economic roots for the opening of new air routes. The Renaissance almost coincided with the opening of new air routes. If there is any influence, it is that the Renaissance provided ideological preparation for the opening of new air routes. It was by breaking the shackles of religious abstinence that the opening of a new air route started smoothly ideologically.