9thC Danes depicted as Muslims/Saracens & attacking St Edmund, see http://www.tandfonline.com/doi/abs/10.1179/175330709X449116 … (http://www.bl.uk/manuscripts/Viewer.aspx?ref=harley_ms_2278_f061r …)pic.twitter.com/RcsUrYrMUU
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A L9thC Islamic incense burner found in Sweden; currently in Länsmuseet Gävleborg: https://books.google.co.uk/books?id=wuN-AgAAQBAJ&lpg=PA547&pg=PA547#v=onepage&q&f=false …pic.twitter.com/awh8jhHGyu
Also interesting is claim that some of Vikings who attacked Seville in 844 stayed+converted: https://books.google.co.uk/books?id=Ij8jCgAAQBAJ&pg=PA82#v=onepage&q&f=false …pic.twitter.com/z2i36XKQF9
For interest, an account of a mid-9thC Viking raid on Nakur, Morocco, that saw them occupy the city for 8 days:https://twitter.com/caitlinrgreen/status/743576768007766016 …
Sevilla is the hottest place for a viking to live in. 
we still use the word "macho" for brave and strong men.
What about Ibn Rustah's reference which apparently used the same term for them as Zoroastrians?
Perhaps, to them, one Middle Eastern religion was as good as another.
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