A rare ancient Roman helmet has surfaced in Denmark ... There are many details that history books decline to tell us about what the Vikings did, but we used to think that they were very far ...

Just before the age of the Vikings ... Museum officials say a photo of the helmet was used on the cover of a research project ...

In a town outside Copenhagen, Denmark, metal detectorists discovered an artifact that pre-dates the Vikings ... helmet was used on the cover of a research project report on Jan. 21, and history ...