Tabaristan

Map of northern Iran during the Iranian Intermezzo. The borders represent the traditional geographical boundaries of each region

Tabaristan or Tabarestan (Persian: طبرستان, romanizedṬabarestān, or Mazanderani: تبرستون, romanized: Tabarestun, ultimately from Middle Persian: , Tapur(i)stān), was a mountainous region located on the Caspian coast of northern Iran. It corresponded to the present-day province of Mazandaran, which became the predominant name of the area from the 11th-century onwards.[1]