"The Vikings" conjures up images of fierce warriors with horned helmets who ruled the seas and raided towns. However, unknown to many, the Vikings were the international tradesmen of their time. In Constantinople or modern day Istanbul, they traded silk and gold. Sumnima Udas visits an archeologists and a ship reconstruction expert in Roskilde, explores using innovative technology for modern shipping routes, and examines the lucrative amber trade on this episode of Silk Road: Past, Present, Future.

Originally released by CNN, 2016. Streaming video file encoded with permission for digital streaming by Infobase on March 28, 2019.

Evidence From Archeology (6:43); --Viking Ships (3:34); -- Modern Technology (3:34); -- Amber Gemstone (7:12); -- Credits: The Viking Trade: an Unlikely Relationship (0:06); .