The history of the geometric thought evolution derives only in small part from direct written sources. A lot of news has come down to us for successive transcriptions, often reworked, or for random discoveries of autograph texts whose existence was unknown.
Many recent studies have shown that in the pre-Hellenistic period the knowledge of geometry was certainly greater than imagined until a few decades ago. Geometry was one of the main components of a multidisciplinary knowledge that also included arithmetic, music and astronomy, as well as grammar, rhetoric and dialectics.