Roskamp said that these rock paintings are very old, and the fonts are very old. There are "works" of Native Americans on the surrounding rock paintings. He thinks this may be the result of the joint writing of ancient explorers in China and Native Americans. Roskamp has written relevant books and academic papers and is currently in the peer review stage.
"China first discovered America" was once a hot topic, but this view was questioned by many experts, who said that there was insufficient archaeological evidence about the ancient China people's arrival in the new American continent.
Roskamp was not the first person to claim that "China discovered the United States first". At the same time, different scholars have no conclusion about "when did China people discover the United States". In China, Luo Zhenyu and Wang Guowei, masters of Chinese studies, first proposed the possibility of Yin merchants crossing to America. Later, Guo Moruo also believed that the Yin people came to America. In recent years, The Origin of Olmec Civilization by Professor Xu Hui of Oklahoma Central State University and Totem of America by China scholar Wang Dayou further clarified the theoretical basis of Yin Shang's eastward migration to America.
1. The Shang Dynasty was the bronze age in China, and it was also a bronze man's head unearthed in Mexico, similar to that in China.
2. Olmec's Yugui is engraved with a figure similar to that of Oracle Bone Inscriptions. Wang Dayou and Xu Hui also explained some Olmec characters according to Oracle Bone Inscriptions.
Olmecs love jade as much as people in China.
4. Olmec jade is strikingly similar to the tiger head on Shang jade.