---
title: "Pre-Columbian transoceanic contact theories"
chunk: 4/11
source: "https://en.wikipedia.org/wiki/Pre-Columbian_transoceanic_contact_theories"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T03:09:31.175412+00:00"
instance: "kb-cron"
---

Other claims of early Chinese contact with North America have been made. In 1882, approximately 30 brass coins, perhaps strung together, were reportedly found in the area of the Cassiar Gold Rush, apparently near Dease Creek, an area which was dominated by Chinese gold miners. A contemporary account states:In the summer of 1882 a miner found on De Foe (Deorse?) creek, Cassiar district, Br. Columbia, thirty Chinese coins in the auriferous sand, twenty-five feet below the surface. They appeared to have been strung, but on taking them up the miner let them drop apart. The earth above and around them was as compact as any in the neighborhood. One of these coins I examined at the store of Chu Chong in Victoria. Neither in metal nor markings did it resemble the modern coins, but in its figures looked more like an Aztec calendar. So far as I can make out the markings, this is a Chinese chronological cycle of sixty years, invented by Emperor Huungti, 2637 BCE, and circulated in this form to make his people remember it.
Grant Keddie, curator of archeology at the Royal B.C. Museum, identified these as good luck temple tokens which were minted in the 19th century. He believed that claims that these were very old made them notorious and he wrote that "The temple coins were shown to many people and different versions of stories pertaining to their discovery and age spread around the province to be put into print and changed frequently by many authors in the last 100 years."
A group of Chinese Buddhist missionaries led by Hui Shen before 500 CE claimed to have visited a location called Fusang. Although Chinese mapmakers placed this territory on the Asian coast, others have suggested as early as the 1800s that Fusang might have been in North America, due to perceived similarities between portions of the California coast and Fusang as depicted by Asian sources.
In his debunked pseudohistorical book 1421: The Year China Discovered the World, British author Gavin Menzies claimed that the treasure fleets of Ming admiral Zheng He arrived in America in 1421. The consensus among professional historians is that Zheng He only reached the eastern coast of Africa, and they dismiss Menzies's claims as entirely without evidence.
In 1973 and 1975, doughnut-shaped stones that resembled stone anchors which were used by Chinese fishermen were discovered off the coast of California. These stones (sometimes called the Palos Verdes stones) were initially thought to be up to 1,500 years old and therefore, they were thought to be proof of pre-Columbian contact by Chinese sailors. Later geological investigations showed that they were made of a local rock which is known as Monterey shale, and it is currently believed that they were used by Chinese settlers who fished off the coast during the 19th century.

=== Claims of Japanese contact ===

Archaeologist Emilio Estrada and co-workers wrote that pottery which was associated with the Valdivia culture of coastal Ecuador and dated to 3000–1500 BCE exhibited similarities to pottery which was produced during the Jōmon period in Japan, arguing that contact between the two cultures might explain the similarities. Chronological and other problems have led most archaeologists to dismiss this idea as implausible. The suggestion has been made that the resemblances (which are not complete) are simply due to the limited number of designs possible when incising clay.
Alaskan anthropologist Nancy Yaw Davis claims that the Zuni people of New Mexico exhibit linguistic and cultural similarities to the Japanese. The Zuni language is a linguistic isolate, and Davis contends that the culture appears to differ from that of the surrounding natives in terms of blood type, endemic disease, and religion. Davis speculates that Buddhist priests or restless peasants from Japan may have crossed the Pacific in the 13th century, traveled to the American Southwest, and influenced Zuni society.
In the 1890s, lawyer and politician James Wickersham argued that pre-Columbian contact between Japanese sailors and Native Americans was highly probable, given that from the early 17th century to the mid-19th century several dozen Japanese ships are known to have been carried from Asia to North America along the powerful Kuroshio Currents. Japanese ships landed at places between the Aleutian Islands in the north and Mexico in the south, carrying a total of 293 people in the 23 cases where head-counts were given in historical records. In most cases, the Japanese sailors gradually made their way home on merchant vessels. In 1834, a dismasted, rudderless Japanese ship was wrecked near Cape Flattery in the Pacific Northwest. Three survivors of the ship were enslaved by Makahs for a period before being rescued by members of the Hudson's Bay Company. Another Japanese ship went ashore in about 1850 near the mouth of the Columbia River, Wickersham writes, and the sailors were assimilated into the local Native American population. While admitting there is no definitive proof of pre-Columbian contact between Japanese and North Americans, Wickersham thought it implausible that such contacts as outlined above would have started only after Europeans arrived in North America and began documenting them.

== Claims of Indian contact ==

In 1879, Alexander Cunningham wrote a description of the carvings on the Stupa of Bharhut in central India, dating from c. 200 BCE, among which he noted what appeared to be a depiction of a custard-apple (Annona squamosa). Cunningham was not initially aware that this plant, indigenous to the New World tropics, was introduced to India after Vasco da Gama's discovery of the sea route in 1498, and the problem was pointed out to him. A 2009 study claimed to have found carbonized remains that date to 2000 BCE and appear to be those of custard-apple seeds.