Having the world's youngest population, the Islamic Republic of Iran bears the responsibility of educating more than 18 million students at segregated schools.
Officially name: The Islamic Republic of Iran
Capital: Tehran
Largest city: Tehran
Official language: Persian
Government: Islamic republic
Christmas in Iran is known as the Little Feast. For the first 25 days of December, a great fast is observed, during which no meat, eggs, milk, or cheese is eaten.