[custom_adv] Persian dance refers to the dance styles indigenous to homeland. Genres of dance in homeland vary depending on the area, culture, and language of the local people, and can range from sophisticated reconstructions of refined court dances to energetic folk dances. [custom_adv] The population of homeland includes many ethnicities, such as Kurds, Azerbaijanis, Turkmen, Jews, Armenian, Georgian peoples, in addition to numerous persian tribal groups which can be found within the borders of modern-day homeland. [custom_adv] Each group, region, and historical epoch has specific dance styles associated with it. Raghs (also spelled as Raqs) is the Arabic word for dance, and is almost exclusively the word used for dance in Persian, as the Persian word for dance, paykubi, is no longer in common usage. [custom_adv] It's also the word in Azerbaijani for dance (Reqs). The Kurdish word for dance is Halperke, and the Lurs from Lorestan use the word Bākhten (or Bāzee) for dance. [custom_adv] People of persian plateau have known dance in forms of music, play, drama or religious rituals and have used instruments like mask, costumes of animals or plants, and musical instruments for rhythm, at least since 6th millennium BC. Cultural mixed forms of dance, play and drama have served rituals like celebration, mourning and worship. [custom_adv] And the actors have been masters of music, dance, physical acts and manners of expression. Artifacts with pictures of dancers, players or actors were found in many of archaeological prehistoric sites in homeland, like Tepe Sabz, Ja'far Abad, Chogha Mish, Tall-e Jari, Cheshmeh Ali, Ismaeel Abad, Tal-e bakun, Tepe Sialk, Tepe Musian, tepe Yahya, Shahdad, Tepe Gian, Kul Farah, Susa, Kok Tepe, Cemeteries of Luristan, etc. [custom_adv] The earliest researched dance from historic homeland is a dance worshiping Mithra (as in the Cult of Mithras) in which a bull was sacrificed. This cult later became highly adhered in the Roman Empire. This dance was to promote vigor in life. [custom_adv] Ancient Persian dance was significantly researched by Greek historian from Herodotus of Halikarnassos, in his work Book IX (Calliope), in which he describes the history of Asian empires and Persian wars until 478 BC. [custom_adv] Ancient Persia was occupied by foreign powers, first Greeks, then Arabs, and then Mongols and in turn political instability and civil wars occurred. Throughout these changes a slow disappearance of heritage dance traditions occurred.