(Easter), Midsummer and Fall (Wotan's sacrificial death), which are mostly celebrated at castles close to sacred places, such as the Externsteine. The author Stefanie von Schnurbein attended a Fall Thing in 1990 and gives the following report in Religion als Kulturkritik (Religion and Cultural Criticism): In 1977 Sigrun Schleipfer founded the Gemeinschaft zur Erhaltung der Burgen (Society for the Conservation of Castles), which proclaims castles to be among the "last paradises of the romantic era" in this cold modern age and had as its primary aim the purchase and restoration of a castle for the Order. In 1995, the society finally acquired the castle of Rothenhorn in Szlichtyngowa (Poland), a run-down structure dating back to the 12th century, though most of the complex dates from the 16th century. Over many years, Adolf and Sigrun have republished all of List's works (and many others relating to the Armanen runes) in their original German. Adolf Schleipfer has also contributed an article to The Secret King, a study of Karl Maria Wiligut by Stephen Flowers and Michael Moynihan, in which he points out the differences between Wiligut's beliefs and those that are accepted within Odinism or Armanism. Research on Ariosophy After the war, Lanz von Liebenfels was first brought to a wider (and scholarly) attention with Wilfried Daim's book Der Mann, der Hitler die Ideen gab (The Man Who Gave Hitler His Ideas) (1957). Although the book was not always taken seriously within academia, for some time Lanz was seen as one of the most important influences on Hitler. Since the 1990s, however, historians have cast doubt on Lanz' significance. The historian Brigitte Hamann, who has written Hitler's Vienna: A Dictator's Apprenticeship, is of the view that Lanz partly influenced Hitler's diction, but had only marginal influences on Adolf Hitler's religious views. The occult roots of Nazism Some of Lanz's proposals for racial purification anticipate the Nazis. The sterilisation of those deemed to be genetically "unfit" was in fact implemented under the Nazi eugenics policies, but its basis lay in the theories of scientific racial hygienists. The Nazi eugenics programme has no proven connection with Lanz's mystical rationale. Eugenic ideas were widespread in his lifetime, whereas he himself was banned from publishing in the Third Reich and his writings were suppressed. Following Goodrick-Clarke's caution in assessing the relation between the two, Adolf Hitler cannot be considered a pupil of Lanz von Liebenfels, as