China discovered the world in the Southern Song Dynasty

The world map on the porcelain relics of the Jizhou kiln of the Southern Song Dynasty, as well as historical records and scientific demonstrations show that the Chinese have long discovered and understood the world including America and Oceania. The earliest world map originated from China''s Tang and Song Dynasties. The West just copied the world map of China, and under the guidance of the Chinese map, began a sailing expedition, and then went to the world. "e;Borderless Land"e; is just an excuse to cover up European colonial expansion. The book restores the truth about the history of world geographic discovery.