And I would like to add: racism.
Just read about what the Fryans thought about the Lydians and the Finda, the Africans and the Asians.
The Fryans thought they were the Übermensch, the superior people.
Why you think the Nazis loved this book so much?
He claimed, that the Frisian nation should be kept free from foreign influences, especially the German influence promoted by the Grimm brothers. Besides he opposed to totalitarian regimes. Halbertsma in his time was a socialist (or communist). His birth place Grouw was called the red village. He never regarded the Frisians as Übermenschen, but was devoted to his Frisian culture, language and religion. It is clear that the Nazi abused the book for their purposes.
Edited by Knul, 09 March 2013 - 11:34 PM.