Iran's first newspapers were published during the reign of Naser al-Din Shah of the Qajar dynasty in the mid-19th century. Most of the newspapers published in Iran are in Persian, the country's official language. The country's most widely circulated periodicals are based in Tehran, among which are ''Etemad'', ''Ettela'at'', ''Kayhan'', ''Hamshahri'', ''Resalat'', and ''Shargh''. ''Tehran Times'', ''Iran Daily'', and ''Financial Tribune'' are among English-language newspapers based in Iran.