Iran seventh largest shopping mall, Isfahan City Center. The fourth most populous city of Iran, Karaj, has a population of around 1.9 million (2016 census). It is the capital of the province of Alborz, and is situated 20 km west of Tehran, at the foot of the Alborz mountain range. It is a major industrial city in Iran, with large factories producing sugar, textiles, wire, and alcohol. With a population of around 1.7 million (2016 census), Tabriz is the fifth most populous city of Iran, and had been the second most populous until the late 1960s. It was the first capital
Name of Iran "Persia" and "Iran" could officially be used interchangeably. However the issue is still debated today. The name "Irān" is first attested in the Avesta as "airyānąm" (the text of which is composed in Avestan, an old Iranian language spoken in northeastern Greater Iran, or in what are now Turkmenistan and Tajikistan). The Modern Persian word "Īrān" () derives immediately from Middle Persian "Ērān" (Pahlavi spelling: "ʼyrʼn"), first attested in an inscription that accompanies the investiture relief of the first Sassanid king Ardashir I at Naqsh-e Rustam. In this inscription, the king's Middle Persian appellation is "ardašīr šāhān šāh ērān" while