The British anthropologist James Frazer accumulated citations to prove this in a chapter of his magnum opus "The Golden Bough" (1890–1915), and this has served as a starting point for several generations of scholars. Frazer and Henriques distinguished two major forms of sacred sexual rites: temporary rite of unwed girls (with variants such as dowry-sexual rite, or as public defloration of a bride), and lifelong sexual rite. However, Frazer took his sources mostly from authors of Late Antiquity (i.e. 150–500 AD), not from the Classical or Hellenistic periods. This raises questions as to whether the phenomenon of temple sexual rites can be generalized to the whole of the ancient world, as earlier scholars typically did.