Background Idanthyrsus was the son of his predecessor, the Scythian king
Saulius, who was himself the brother and slayer of
Anacharsis.
Persian invasion In his
Histories,
Herodotus records an exchange between Idanthyrsus and the Persian king
Darius I of Persia, upon the latter's
invasion of Scythia (). The Scythians having repeatedly retreated before him, Darius sends a message to the Scythian king, calling upon him either to fight or submit; Herodotus recounts the dialogue thus, starting with the message of Darius to Idanthyrsus: To which the Scythian king replied:
Legacy Graeco-Roman authors confused several early Scythian kings such as
Išpakaia,
Protothyes, and
Madyes, into a single figure, also named Madyes, who led Scythians into defeating the Medes and the legendary
Egyptian king
Sesōstris, before imposing their rule over Asia for many years before returning to
Scythia. Later Graeco-Roman authors named this Scythian king as
Idanthyrsos or
Tanausis, although this Idanthyrsos is a legendary figure separate from the later historical Scythian king Idanthyrsos, from whom the Graeco-Romans derived merely his name. ==Notes and references==