M. Diakonoff says, Amardian lived in the coasts of the Caspian Sea, in the distance of the Alban and Otia from the north and the Hyrcanian from the east. Strabo says about the Tapyri that they wore black robes and had long hair, and "he who is adjudged the bravest marries whomever he wishes" (Geography 11.8 = T520a). In the history of the Persian Empire, the Mard were handsome, capable and brave persons presented in the heart of the army and were responsible for defending the commander.)he Amard helped Achaemenid in several battles including the invasion of Greece, the occupation of Sardis, the attack of Medes and at the Battle of Opis. The other theory about Amol via Ibn Isfandiyar says, at the request of wife Firoz Shah, he created a large and flourishing city named Amele. Achaemenid Empire People of Amol were the people of Amard they were one of the most important Achaemenid satraps who were the guardians of the Amard Sea, the current Caspian Sea. Further evidence of the power of the Amol people is their fighting in the Battle of Thermopylae, Battle of Gaugamela and other Sardis forces in the Achaemenid Empire. Quintus Curtius Rufus said, Immortals (Achaemenid Empire) Archers they were all Amard people. Parthian Empire During the age of the Parthian Empire, Amol was one of the centers of Iran. It seems that Amol's reputation in the time of Alexander the Great and the Parthian period dominated the political-administrative Satrap was Hyrcanian. During the Parthian period, Amol was also famous and prosperous, which was called Homo or Hamo. Parthian King Phraates I (171–173 AH) defeated the Mardas in the Amol region. He is said to have moved a group of people to the Parthian lands in northern Khorasan and settled in western Amu Darya, also known as Amol Zam. Sassanian According to historical literature, Amol was the capital of Mazandaran during the period starting from the 3rd century AD under the Sassanian Empire to the 13/14th century AD under the Ilkhanate dynasty of Mongol Empire. Before Islam, Amol was one of the largest and most important cities in the region and was considered the center of Mazandaran. The city of Amol existed before the Sassanids and during the Alexander period. During the Sassanid period, the importance of this Amol was increased due to the escape of the followers of Mazdak to this city. Based