Iran was formerly called Persia, a name which comes from the Fars province where the Aryan tribes lived. In 1934, Reza Shah officially changed the name to Iran, an Aryan word meaning “of noble origin.� However, the word Persia is often still used to refer to the country's arts and architecture. Capital City: Tehran Independence Day: 1 April 1979 (Islamic Republic of Iran proclaimed) Government Type: theocratic republic Population: 69,018,924 Languages: Persian and Persian dialects 58%, Turkic and Turkic dialects 26%, Kurdish 9%, Luri 2%, Balochi 1%, Arabic 1%, Turkish 1%, other 2% Religion: Shi'a Muslim 89%, Sunni Muslim 9%, Zoroastrian, Jewish, Christian, and Baha'i 2% Life Expectancy: 69.66 Currency: Iranian rial (IRR) GDP(per capita) 7,000 Industries: petroleum, petrochemicals, textiles, cement and other construction materials, food processing (particularly sugar refining and vegetable oil production), metal fabricating, armaments Exports: petroleum 80%, chemical and petrochemical products, fruits and nuts, carpets Import industrial raw materials and intermediate goods, capital goods, foodstuffs and other consumer goods, technical services, military supplies Geography Information Total Area: 1,649,000 sq km (slightly larger than Alaska) Land Area: 1,636,000 sq km Water Area: 12,000 sq km Highest Point: Kuh-e Damavand 5,671 m Lowest Point: Caspian Sea -28 m