Columbus the navigator, why is he called a braggart?

Columbus, the navigator, is called a braggart because he likes to talk big at ordinary times, and when Columbus decided to sail around the earth from the west to explore the beautiful and rich East, the plan that Columbus sold to the prince of Portugal was very expensive and was regarded as a joke by others. No one believed him and thought he was a braggart, so the prince also refused his request.

Columbus was an Italian, who made a living as a textile workshop at home. Since he was a child, he has been exposed to textile work, which greatly improved Columbus's practical ability and cultivated his carefulness, patience and tenacity. Columbus's hometown is Genoa, Italy, which is a port city. Many ships dock in the port every day. Many people from all over the world gather in the port. They have different clothes, different skin colors and different languages. They also brought all kinds of spices and strange things, which left a deep impression on Columbus.

At the age of p>14, Columbus went to be a sailor. Later, he went out sailing with many ships in the port many times. In this process, Columbus accumulated a lot of voyage experience. Later, Columbus came to Portugal, where he got in touch with and learned more about navigation, mathematics, measurement and so on, which provided a lot of help for Columbus's future navigation.

Later, Columbus read The Travels of Marco Polo, and Columbus read his special yearning for the distant East. At that time, the scholar Toscanelli published? Earth circle theory? Columbus was particularly interested after hearing this. He wanted to sail to India from the west to find a country with a lot of precious stones, as Kyle Polo said.

Later, Columbus began to make his sailing plan and sold it to Prince Juan of Portugal. But in the plan, Columbus kept the key part secret, because Columbus usually likes to lie, and the plan was extremely expensive, so he was laughed at by others and called Columbus? A braggart? Prince Juan later rejected Columbus. Later, Columbus's plan was accepted by the Spanish rulers and provided Columbus with a lot of materials. Columbus began to go to sea, and soon he discovered America, and Columbus became a famous navigator.