Good one.. genious. Shia Islam was started by Iranians b/c they wanted to separate themselves from the Arabs, although it spread to parts of Iraq it was an Iranian sect religion.
http://www.cia.gov/cia/publications/factbook/geos/ir.html
Iran:
Religions:
Shi'a Muslim 89%, Sunni Muslim 9%, Zoroastrian, Jewish, Christian, and Baha'i 2%
Ethnic groups:
Persian 51%, Azeri 24%, Gilaki and Mazandarani 8%, Kurd 7%, Arab 3%, Lur 2%, Baloch 2%, Turkmen 2%, other 1%
genius... 8)