 Pervasive throughout the Eastern Mediterranean and Western Asia until late antiquity and beyond, "mágos", "Magian" or "magician", was influenced by (and eventually displaced) Greek "goēs" (γόης), the older word for a practitioner of magic, to include astrology, alchemy and other forms of esoteric knowledge.This association was in turn the product of the Hellenistic fascination for (Pseudo‑)Zoroaster, who was perceived by the Greeks to be the "Chaldean", "founder" of the Magi and "inventor" of both astrology and magic, a meaning that still survives in the modern-day words "magic" and "magician".Authors William Swatos and Peter Kivisto define magic as "any attempt to control the environment or the self by means that are either untested or untestable, such as charms or spells."