Tabaristan

Tabaristan or Tabarestan (Persian: طبرستان, romanized: Ṭabarestān, or Mazanderani: تبرستون, romanized: Tabarestun, ultimately from Middle Persian: , Tapur(i)stān), is 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.

Tabaristan
Flag
Motto: From Mountains to Sea, We Endure.
Anthem: Caspian Dreams
Capital	Saari
Largest city	Babol
Official languages	Farsi
Recognised national languages	Farsi
Religion	Twelver Shi'ism
Demonym(s)	Tabari
Government	Unitary parliamentary republic
Population
• 2020 census	15,984,105
Currency	Rial (TR)
Date format	mm/dd/yyyy
Driving side	right
Calling code	+111
Internet TLD	.tb

=History=

Tabaristan was named after the Tapurians, who had been deported there from Parthia by the Parthian king Phraates I (r. 176–171 BC). At the advent of the Sasanians, the region, along with Gilan and Daylam, was part of the Padishkhwargar kingdom of king Gushnasp, who is mentioned in the Letter of Tansar. He submitted to the first Sasanian King of Kings (shahanshah) Ardashir I (r. 224–242 AD) after being guaranteed to keep his kingdom. His line would continue ruling Padishkhwargar until the second reign of Kavad I (r. 488–496, 498–531), who removed the dynasty from power and appointed his son Kawus in its stead. Under the Sasanians, Tabaristan enjoyed considerable autonomy. They most likely left most of the affairs to the locals. The mint signature of "AM" is generally presumed to be an abbreviation for the Amul, the main city of the region. The first known Sasanian monarch to have minted coins with the signature was Bahram V (r. 420–438), whilst the last was Boran (r. 630–630, 631–632).