The Quran (English pronunciation: /kɔrˈɑːn/[n 1] kor-ahn; Arabic: القرآن al-qur'ān, IPA: [qurˈʔaːn],[n 2] literally meaning "the recitation"; also romanised Qurʾan or Koran) is the central religious text of Islam, which Muslims believe to be a revelation from God (Arabic: الله, Allah). Its scriptural status among a world-spanning religious community, and its major place within world literature generally, has led to a great deal of secondary literature on the Quran. Quranic chapters are called suras and verses are called ayahs. Manuscript of the Quran. Brooklyn Museum. Quran - in Mashhad, Iran - written by Ali. Muslims believe the Quran was verbally revealed by God to Muhammad through the angel Gabriel (Jibril), gradually over a period of approximately 23 years, beginning on 22 December 609 CE, when Muhammad was 40, and concluding in 632 CE, the year of his death. Muslims regard the Quran as the most important miracle of Muhammad, a proof of his prophethood, and the culmination of a series of divine messages that started with the messages revealed to Adam and ended with Muhammad. They consider the Quran to be the only revealed book that has been protected by God from distortion or corruption.