Please read the articles by Mr. Hamma Mirwaisi in the Kurdistan post about the Madayu (Kurd, Lor Taylsh, Galini, Mazandarani and other branches of Mede people)

The story of Darius the Great, the founder of the Achaemenid Empire, the Emperor who destroyed the unity among the Airyanem Vaejah nations
Author : Hamma Mirwaisi

http://www.kurdistanpost.tk/

http://www.jaff-sassanie.com/ShowContent.aspx?id=178&language=E