Islam is an Abrahamic monotheistic religious group teaching that there is only one God (Allah) and that Muhammad is the messenger of God. It is the world’s second-largest religion and with over 1.8 billion followers (or 24.1% of the world’s population), most commonly known as Muslims.
Muslims make up a majority of the population in 50 countries. Islam teaches that God is merciful, all-powerful, unique and has guided mankind through prophets, revealed scriptures and natural signs.
The primary scriptures of Islam are the Quran, viewed by Muslims as the verbatim word of God, and the teachings and normative example (called the sunnah, composed of accounts called hadith) of Muhammad (c. 570–8 June 632 CE).
Muslims believe that Islam is the complete and universal version of a primordial faith that was revealed many times before through prophets including Adam, Abraham, Moses and Jesus. Muslims consider the Quran to be the unaltered and final revelation of God.