A fragment of the Black Stone of Mecca was brought to Bagdad in 951 A.D. by order of the Khalif Moti Lillah, and was inserted in the threshold of the main entrance to the royal palace there. From a balcony directly above the entrance was suspended a piece of tapestry taken from that in the Kaaba, and it was so hung that its lower border was about on a level with the face of anyone entering the portal. All who passed in were strictly enjoined to touch their eyes with this tapestry and also to kiss the piece of the Black Stone, upon which no one was permitted to tread. These details are given in Khondemir’s life of Abu Jafer Al Mostasem, the last of the Khalifs, who died in 1258 A.D.[162] The Kaaba at Mecca offers to the adoration of faithful Mohammedan pilgrims to the shrine, not only the famous Black Stone, which is set in the eastern corner of the building, but also another sacred stone inserted in the southern corner at a height of five feet from the ground. This is designated as the “Southern Stone.” The Kaaba itself is a small rectangular structure, built of stone from the surrounding hills, and having a length of 12 metres (39.4 feet), a width of 10 metres (32.8 feet) and a height of 15 metres (49.2 feet). One of the few Europeans who have been permitted to enter the sacred enclosure, Dr. Snouck-Hurgronje, does not believe that the Kaaba owes its origin and sanctity to the Black Stone, but that its foundation was rather due to the presence of the well Zemzem, whose waters were already reported to have a therapeutic quality in the early days of Islam, and which may have earned its repute on this account. If, however, we admit that the medical properties (of a purgative nature) are due to contamination or percolation posterior to the primitive time when the well Zemzem first attracted the reverence of the Arabs of this region, then the purity of the water may account for its high place in the esteem of the Arabs. Of the Black Stone, a native of Mecca who saw the stone when it had been taken out of the wall of the building, in the course of the latest restoration of the structure, states that its inner surface is of a grayish hue.[163] The Kaaba also contained the Maquam Ibrahim, a sacred stone preserved from pre-Islamite times, and brought into connection with the history of Abraham by the Mohammedan legends. This stone, enclosed in a receptacle of like material, was at one time buried in the ground underneath the building, but receptacle and enclosed stone are now set within the iron gratings which partition off a part of the space inside the cupola over the pulpit of the Mosque of Mecca.[164]