The social makeup of Iran's population is very complex, because there is actually no such thing as the Iranian people. There are, instead, Iranian citizens divided into many ethnic groups: Persians make up about 60% of the population, while the rest are Azars, Kurds, Blouchis, Arabs, Turkmen and tens of smaller ethnic groups. The main religion in Iran is Shia Islam, adhered to by 90% of the country's people, while Sunnis - mainly Kurds and Blouchis - make up about 10%. The country recognizes Judaism, Christianity and Zoroastrianism and reserves a parliamentary seat for each religion. Zoroastrianism is based on...