Ancient Trade between Alaska and Asia

An incredible archaeological discovery in Alaska provided evidence that trade was occurring between Asia and the New World centuries before Christopher Columbus landed in the Americas in 1492. Researchers uncovered two bronze artifacts in a 1,000-year-old house in Alaska, which were manufactured in China, Korea, or Yakutia
http://www.ancient-origins.net/news-history-archaeology/ancient-bronze-artifacts-alaska-reveals-trade-asia-columbus-arrival-002917