Friar Julian was just a man, an explorer, who had this idea. But then I could put here a link about Sándor Kőrösi Csoma, one of the greatest Hungarian explorers, he thought, that the Hungarian origins should be found in Tibet, or somewhere in Central Asia, and he had a journey from Hungary to Tibet. Unfortunately, his expedition was unsuccesful, just like other " Hungarian origin searchers' ". There are also theories, that we could be originated to Mesopotamia, to king Menrot or Nimród in Hungarian. It also has a legend, but as others have stated, legends have nothing truth in them, which is I think paradoxic, or else why would anyone create a myth without a base, without some kind of truth? And please don't tell me, that "Grimm tales are mere fairy tales, they don't contain truth.", or such things. Of course not, the Grimm brothers however written those tales with a reason, they are completely artificial.