"Secrets: A Viking Map?" (2013)

The sound was a little better--still dramatic--but not as bad as some of the other documentaries.  This documentary is not questioning the arrival of the Vikings to America.  It is looking at the authenticity of an artifact known as the Vinland map.  A good introduction to this particular artifact.  This documentary is also a good introduction into looking at why anything is produced--Why is this document written?  Why is this essay written?  Why is this news article written?  Why is this product on the market?--Or in the case of this documentary, Why is this map produced?  Does a nice balanced job of presenting the ambiguousness of historical research.