Besant's claim that Jiddu Krishnamurti was the vehicle of a new Maitreya, or world teacher, led to a formal split in 1912–13, when Steiner and the majority of members of the German section of the Theosophical Society broke off to form a new group, the Anthroposophical Society. Steiner took the name "Anthroposophy" from the title of a work of the Austrian philosopher Robert von Zimmermann, published in Vienna in 1856. Despite his departure from the Theosophical Society, Steiner maintained his interest in Theosophy throughout his life. Anthroposophical Society and its cultural activities The Anthroposophical Society grew rapidly. Fueled by a need to find an artistic home for their yearly conferences, which included performances of plays written by Edouard Schuré and Steiner, the decision was made to build a theater and organizational center. In 1913, construction began on the first Goetheanum building, in Dornach, Switzerland. The building, designed by Steiner, was built to a significant part by volunteers. Steiner moved from Berlin to Dornach in 1913 and lived there to the end of his life. Steiner's lecture activity expanded enormously with the end of the war. Most importantly, from 1919 on Steiner began to work with other members of the society to found numerous practical institutions and activities, including the first Waldorf school, founded that year in Stuttgart, Germany. On New Year's Eve, 1922–1923, the Goetheanum burned to the ground; contemporary police reports indicate arson as the probable cause. Steiner immediately began work designing a second Goetheanum building - this time made of concrete instead of wood - which was completed in 1928, three years after his death. At a "Foundation Meeting" for members held at the Dornach center during Christmas 1923, Steiner founded the School of Spiritual Science. This school, which was led by Steiner, initially had sections for general anthroposophy, education, medicine, performing arts (eurythmy, speech, drama and music), the literary arts and humanities, mathematics, astronomy, science, and visual arts. Later sections were added for the social sciences, youth and agriculture.Rudolf Steiner, Constitution of the School of Spiritual Science: Its arrangement in Sections 1964 The School of Spiritual Science included meditative exercises given by Steiner. Political engagement and social agenda Steiner became a well-known and controversial public figure during and after World War I. In response to the catastrophic situation in post-war Germany, he proposed extensive social reforms through the establishment of a Threefold Social Order in which the