Nāder Šāh Afšār or Nadir Shah (; also known as Nāder Qoli Beg - نادر قلی بیگ or Tahmāsp Qoli Khān - تهماسپ قلی خان) (November, 1688 or August 6, 1698 – June 19, 1747) ruled as Shah of Persia (1736–47) and was one of the most powerful rulers in Iranian history. Because of his military genius as evidenced in numerous martial encounters throughout the Naderian Wars, such as the battles of Herat, Mihmandust, Murche-Khort, Kirkuk, Yeghevard, Kheibar pass, Karnal and Kars, some historians have described him as the Napoleon of Persia or the Second Alexander. Nader Shah was a member of the Turkic Afshar tribe of northern Persia, which had supplied military power to the Safavid state since the time of Shah Ismail I.