How did man discover the earth?

Humanity has always been interested in distant and unknown lands. Our ancestors carried out the colonization of the Earth first by land, discovering and recording new lands on maps. After, the man’s interest made him explore the distant seas. So, for example, the Vikings did not know anything about the “new lands”, but their confidence and thirst for glory helped them discover America. Later, Columbus, with his expedition, discovered the great continent to the whole world. People have always strived for something new, unknown, it was not in vain that before sailing, Columbus said: “following the light of the sun, we leave the old world.”