Most likely Saudi Arabia.
The last Prophet of Islam Hazrat Muhammad (SAW) is the most sacred, most honored, most loved, most famous, and most followed person of Islam.
Islam is a religion - therefore the answer is Islam.
Muhammad is the most popular name in Islam
Islam itself.
Who was the most affected by the introduction of Islam to East Africa?
The holy city of at the centre of Islam is Mecca.
The most common religion in Algeria is Islam, with the majority of the population being Sunni Muslims. There are also small Christian and Jewish communities in the country.
Yes. Islam is followed in Persia. Most of the followers of Shia sect of Islam.
Islam Extreme and Islam Moderate
Islam became the most common religion
The more the specific religion followers the more will be the converts from this religion to Islam. Accordingly, most converts to Islam are from Christian religion. Some think that most converts to Islam are from people who had no previous convictions or beliefs. Refer to links below
The premise of the question is incorrect. The Shahada IS actually the most important pillar of Islam.