Muslim object of veneration, built into the eastern wall of the Kaʿbah (small shrine within the Great Mosque of Mecca) and probably dating from the pre-Islamic religion of the Arabs. It now consists of three large pieces and some fragments, surrounded by a stone ring and held together with a silver band. According to popular Islamic legend, the stone was given to Adam on his fall from paradise and was originally white but has become black by absorbing the sins of the thousands of pilgrims who have kissed and touched it. In 930 it was carried away by the fanatics of the Qarmatian sect and held for ransom for about 20 years.