The BDM used campfire romanticism, summer camps, folklorism, tradition, and sports to indoctrinate girls within the Nazi belief system, and to train them for their roles in German society: wife, mother, and homemaker. Their home evenings revolved around domestic training, but Saturdays involved strenuous outdoor exercise and physical training. The purpose of these activities was to promote good health, which would enable them to serve their people and their country. The "home evenings"—ideally to be conducted in specially built homes—also included world view training, with instruction in history. This instruction would include learning the Horst Wessel song, the Nazi holidays, stories about Hitler Youth martyrs, and facts about their locality and German culture and history. Physical education included track and field sports like running and the long jump, gymnastics (e.g. somersaulting and tightrope walking), route-marching, and swimming. The importance of self-sacrifice for Germany was heavily emphasized; a Jewish woman, reflecting on her longing to join the League of German Girls, concluded that it had been the admonishment for self-sacrifice that had drawn her most. The League was particularly regarded as instructing girls to avoid "Rassenschande" or racial defilement, which was treated with particular importance for young females.