Who was the discoverer of America?

As part of his four expeditions (from 1492 to 1504), Christopher Columbus discovered new lands, which were later called America. In the Middle Ages, all civilization was concentrated in Eurasia and Africa, these continents were called the Old World. European merchants were looking for new lands for the development of trade. As a result of the discovery of the New World, Europe saw new animals and plants for the first time. In addition, there was also an exchange of diseases between continents. As a result of the discovery of America, the exchange of human resources began to take place in the future.

However, there are versions that as early as the 6th and 10th centuries, the Irish and Vikings landed on the American coast.