The Quran is the sacred scripture of Islam. It contains more than 6,200 verses organized into 114 chapters of unequal lengths. Muslims hold the Quran to be the word of God revealed to the Prophet Muhammad (Peace be upon him) through the Angel Gabriel. It is the book Muslims turn to for spiritual insight, sacred law, worship, guidance, and assurance and tranquility. The Quran is unique in that ever since it was revealed to the Prophet Muhammad 14 centuries ago, not a single letter of it has been changed. It remains precisely as it was revealed and as it was committed to memorization and to writing in the time of the Prophet and shortly thereafter dispersed throughout the lands. Muslim families today have bound copies of the book in their homes, but several million Muslims around the world also have memorized the book’s entirety.