People of the Book or Ahl al-kitab (Arabic) is an Islamic term referring to followers of those religions which Muslims regard as having been guided by previous revelations, generally in the form of a scripture. In the Quran, they are identified as the Jews, the Christians, the Sabians, and - according to some interpretations - the Zoroastrians. Starting from the 8th Century, some Muslims also recognized other religious groups, such as Samaritarians, and even Buddhists, Hindus, and Jains, as People of the Book.