The Alexander Technique is a study of freeing response that is taught by studying one's own mannerisms of posture. It takes its name from F. Matthias Alexander (1869–1955), a former Shakespearean recitalist, who first observed and formulated its principles during 1890 – 1900. F.M. Alexander trained teachers of his Technique from 1931 until 1955. The Technique is often considered to be the "grandfather" of many later somatic methods, such as Feldenkrais, Rolfing, Hellerwork, etc.