An ancient panhellenic martial dance from Pontos. Homer,Xenophon,Plato and Strabo have written about this dance. Siera/Serra derives from the phrase "Orchisis eis iera" = Dance for a sacred purpose. Pyrichios = Sound of fire. "Εκμανθάνουσι πάντες εν Σπάρτη, από πέντε ετών πυρριχίζειν." - Αθήναιος, Επιτομή 2.2.134 -