Christopher Columbus Discovers Americas' Background-cartography

Columbus discovers the Americas, objectively has the important meaning to human society's development, promoted the humanity to isolate from each other to associates mutually, has facilitated "dispersion" the universal history approaches "the whole" the universal history transformation. From this, Columbus has become the world famous navigator. From 15 century's ends in more than 500 years, various countries numerous experts advance uninterruptedly until now to its research. The domain involves the Columbus biography, Xi'an Aero-Engine's background, the agent and the goal, discovers Americas' consequence, the influence, the significance; Also has the economical, political, religious, social, the time, historical, the geography angle, also has the synthesis consideration analysis. But planned specially carries on the elaboration in the cartography not to be many, insufficient. But the cartography background regarding Columbus discovered that Americas have the vital significance. This article from the cartography angle, first introduced that has analyzed the ancient Greece roman to the shape of the earth and the size view, then narrated the middle ages people's view, elaborated the Columbus same time person this aspect idea again. Finally, elaborated Columbus to their understanding, and attempts to analyze this kind of understanding the origin, with the aim of obtaining the cartography background to Columbus to discover that the Americas have the great significance conclusion. And may further pass on the Greek Rome as well as the middle-ages cartography characteristic, is the European opens one of new route's essential conditions.