Yarsanism
Yarsanism (Kurdish: یارسان, romanized: Yarsan), Ahl-e Haqq (Kurdish: ئەهلی حەق, romanized: Ehlî Ḧeq; Persian: اهل حق), or Kaka'i, is an inherited, syncretic religion founded by Sultan Sahak in the late 14th century in western Iran. The total number of followers of Yarsanism is estimated to be over half a million to one million in Iran.