The Quran also transliterated Qur'an, Koran, Qur’ān, Coran, Kuran, and al-Qur’ān, is the central religious text of Islam, which Muslims consider the verbatim word of God (Allah) and the Final Testament, following the Old and New Testaments. It is regarded widely as the finest piece of literature in the Arabic language.
The Quran is divided into 114 suras of unequal length which are classified either as Meccan or Medinan depending upon their place and time of revelation.
Muslims believe the Quran to be verbally revealed through angel Jibrīl (Gabriel) from God to Muhammad gradually over a period of approximately twenty-three years beginning in 610 CE, when Muhammad was forty, and concluding in 632 CE, the year of his death. Muslims further believe that the Qur'an was precisely memorized, recited and exactly written down by Muhammad's companions (Sahaba) after each revelation was dictated by him.