"her Genghis-Khan-at-height-of-evil voice"
Genghis Khan
Public DomainGenghis Khan

  Genghis Khan was a 13th-century Mongol ruler who came to power through a relentlessly savage military campaign spanning 3 decades.

His name is synonymous with destruction on a massive scale, although he is also credited with bringing a new order to the Silk Road and (with his grandson Kublai Khan) re-uniting China under the Yuan dynasty.