For centuries, researchers have been debating if, in pre-Columbian times, meaningful exchanges between the indigenous peoples of Asia and the Americas might have taken place. Many sinologists have written positively on this topic, yet, so far, no conclusive proof has been put forth establishing such trans-Pacific contact as a historical event.

This book introduces previously unrecognized ancient written evidence that in pre-Columbian times, multiple intellectual exchanges took place between Asiatic and North American populations. Using the novel integration of the legal construct of substantial similarity with the comparative statistical tool of Jaccard's Index of Similarity, the Chinese origin of fifty-three North American petroglyphs and pictographs is established.

Here is the long sought sinographic proof that Asiatic explorers not only reached the Americas long before the first European voyagers, but that they interacted positively with Native North American people on multiple occasions over an extended period of time.