How did so many Roman artifacts make it into the Viking Early Middle Ages?

Prof. Gunnar Heinson „How did so many Roman artifacts make it into the Viking Early Middle Ages?” Wystąpienie z konferencji "Viking Globalization - Truso from the perspective of Baltic Commercial Centres" , która odbyła się w Elblągu w dniach 18-19 maja 2015 roku. Lecture from "Viking Globalization - Truso from the perspective of Baltic Commercial Centres" conference that took place May 18th-19th 2015 in Elblag, Poland. Animacja, realizacja video i montaż | Motion graphic design, cinematography and film editing: Maciek Jagodziński