Why did Columbus drive away the road that no one took?

1, the traditional east-west trade route was blocked. At that time, Asia in the East was a very mysterious and rich land in the hearts of Europeans (Kyle Poirot's travels had a great influence, but most Europeans still had no specific impression of Asia). At that time, European countries badly needed spices and gold from Southeast Asia, but it was very difficult to go to Asia: the land route to Asia was blocked by the Ottoman Turkish Empire, and the sea route was also blocked. To go to Asia, you must pass through the Cape of Good Hope at the southernmost tip of South Africa. D 'Gama had discovered before Columbus that it was beneficial to sail eastward and bypass Africa.

2. Columbus believed in the theory of the earth circle, and thought that sailing to the west could also reach the east.