Old World metals traded on Alaska coast hundreds of years before Europeans
eurekalert.org
eurekalert.org
What is interesting about this is that some sort of trading/contact was occurring across the Pacific Ocean around 1100-1300 AD. While anticipated, this is a significant find.
I suppose it's also possible things can have drifted over on ship wrecks or in stray boxes.
Edit: see http://community.seattletimes.nwsource.com/archive/?date=200...
As I noted before, rumor has it that the locals have always (and often) done this. They just don't publicize it in a manner that brings it to the attention of the authorities. :-)
That doesn't seem particularly surprising, given the great migrations around Polynesia in a similar era.
Also, this is neat reading:
https://en.wikipedia.org/wiki/Pre-Columbian_trans-oceanic_co...
By comparison, the Bering Strait is about ~50 miles wide, and Greenland is about 400 miles each from Labrador and Iceland (note that I'm counting from West Greenland, where the Vikings settled), which is itself ~300 miles from the Faroe Islands thence another 200 miles or so to the Shetlands and 200 miles yet again to Norway. The islands of the Caribbean Sea are generally no more than ~100 miles apart. Bermuda (uninhabited pre-European contact) is ~600 miles away from North Carolina.
Given those distances and what we know about historical shipbuilding technology, combined with evidence of which islands weren't inhabited back then, the only plausible contact routes that existed before the 14th century would be the Bering Sea, Viking longships, and Polynesian outrigger canoes.
What was your point?