But where did Menzies come up with the idea that it was Asians, not Europeans, who first arrived in America from other countries? It's been long held by scholars that it was people from Asia who first set foot in North America, but not in the way that Menzies describes. Sometime 10,000 years ago or more, people of Asian origination are believed to have crossed over the Bering land bridge from Siberia to what is now Alaska. From there, they are believed to have spread out over the course of millennia, diverging genetically and populating North and South America.
But Menzies' 1421 theory supposes much more direct influence from China. Rather than civilization evolving separately in the Americas and Asia, under the 1421 theory, China was directly involved in governance and trade with the peoples of the Americas with whom they shared their ancestry.
So what evidence does he have to support this notion? It's Menzie's belief that one merely has to refer to certain maps to see the light.

A full 30 years before Gavin Menzies published his book, Baptist missionary Dr. Hendon M. Harris perused the curiosities in a shop in Taiwan. It was there he made an amazing discovery: a map that looked to be ancient, written in classical Chinese and depicting what to Harris was clearly North America. It was a map of Fu Sang, the legendary land of Chinese fable.
Fu Sang is to the Chinese what Atlantis is to the West -- a mythical land that most don't believe existed, but for which enough tantalizing (yet vague) evidence exists to maintain popularity for the idea. The map the missionary discovered -- which has come to be known as the Harris map -- showed that Fu Sang was located exactly where North America is. Even more amazingly, some of the features shown on the map of Fu Sang look a lot like geographical anomalies unique to North America, such as the Grand Canyon.

As if the Harris map weren't suggestive enough, other maps have also surfaced. It's a specific map that Menzies points to as definitive proof that the Chinese had already explored the world long before the Europeans ever set sail in the age of exploration. This map, known as the 1418 map -- so called for the date it was supposedly published -- clearly shows all of the world's oceans, as well as all seven continents, correct in shape and situation. Even more startling is the map's accurate depiction of features of North America, including the Potomac River in the Northeast of the present-day United States.
Menzies believes that not only had the Chinese already explored the world before Columbus and other European explorers, but that it was with Chinese maps that the Europeans were able to circumnavigate the globe. Armed with the map as his flagship evidence, Menzies points out plenty of other artifacts that point to Chinese pre-Columbian occupation in the Americas. Read the next page to find out what supports his theory.

During the Ming Dynasty, a great admiral named Zhang He (as well as other notable admirals) sailed out of China to explore the world. Under the behest of Emperor Zhu Di, He and the Chinese Fleet (made up of 28,000 men) made their way from Asia to the Middle East and Africa, eventually reaching as far as Indonesia. But did the fleet continue west all the way to the Americas?
Perhaps the more logical possibility is that the fleet returned to China and then again set sail, this time eastward, across the Pacific to the west coast of North America. Either way, Menzies says that evidence of their arrival is scattered throughout the tradition, custom and art of Native American tribes. And he's not alone. "1421" has created a stir among its readership, generating scores of additional submissions of evidence of a Chinese presence within the Americas before the Europeans set foot on the continents. To Menzies and his supportive readers, one need merely look at the rich cultural tapestry of the peoples of the Americas to find what they believe is the evidence of Chinese influence there.

Before the arrival of Europeans, neither North nor South America had a horse roaming upon it. This is the idea held by historians -- the horse is not indigenous to the Americas, and it wasn't until the Europeans brought the horse that the species found its way to the new world. But this is contradicted by some pre-Columbian native art found at Cofins Cave in Brazil and at Trujillo, Peru that depict horses, and in one case, what is thought to be Chinese cavalry on horseback. The Chinese were experienced horsemen for centuries, if not millennia, prior to the European age of exploration, and it's logical that were they to make an expedition to the Americas, they would have brought their valuable horses with them.
Indigenous legend and folklore is also fraught with what Menzies believes are stories about encounters between native tribes and Chinese explorers. The leaders of the Inca tribe -- a vast, powerful mountain tribe in the Andes Mountains of South America -- are thought by Menzies to have been governed by Chinese admirals. The leader Montezuma, ruler of the Aztec empire in Mexico, is believed by Menzies to have mistaken the conquistador Cortez for his grandfather, returned again from his home in the East. The Cherokee Indians of the southeastern United States possess lore that tells of their accepting and warring with visiting Chinese travelers by sea.

Sources

· Menzies, Gavin. "1421: The Year China Discovered the World." http://www.1421.tv/index.asp
· Seaver, Kristen A. "Walrus Pitch and Other Novelties: Gavin Menzies and the Far North." The 1421 Myth Exposed. http://www.1421exposed.com/html/walrus_pitch.html