Persia is the old name of Iran
There is no difference. Islam is a religion.
Yes. Islam is followed in Persia. Most of the followers of Shia sect of Islam.
Islam is the name of the religion & Muslim is the follower of Islam.
Islam is never against modernization.
The main two branches of Islam are Sunnis and Shiites. Refer to related question below for the difference between the two.
Islam is the religion Muslim is the person who follows Islam's teaching
islam is the true and ultimate religion and humanism is the freedom
Islam is the true and ultimate religion and Humanism is the freedom
Islam is the religion. Muslims are the people to practice/follow the religion of Islam.
Islam.
Today it is Islam.