Rudolf Steiner founded Waldorf education in 1919 based on his philosophy of anthroposophy. The first Waldorf school opened in Stuttgart, Germany to educate workers' children. It was a coeducational, unified 12-year school with minimal state interference. Waldorf education aims to educate the whole child - spirit, soul, and body - through a balanced curriculum integrating art, music, movement, and nature. Teachers nurture each child's development according to their stage of childhood - imitation, imagination, or discrimination.