(also Koran. Arabic term meaning, ‘recitation’ or ‘scripture’): Muslims believe that the Holy Qur’an contains divine revelations to Prophet Muhammed received in Mecca and Medina over a period of 23 years in the early 7th century CE. It consists of 114 suras (chapters) of varying lengths, each of which is divided into a number of ayat (verses). The suwar (chapters) fall under two categories, the Meccan in reference to those revealed while the Prophet was in Mecca, and the Medinan in reference to those revealed while he was in Medina. After the first sura, called al-Fatiha, the rest of the chapters are arranged roughly in decreasing order of length. There are varying traditions amongst Muslims about the collection and compilation of the Holy Qur’an, although it is generally believed that the authoritative collection (mushaf) was prepared following the demise of Prophet Muhammad. Among Muslims, the Holy Qur’an plays a central role in rituals, law, theology, literature arts and spirituality.