زمزم
During the Hajj of 930 CE, the Shi'ite Qarmatians attacked Mecca under Abu Tahir al-Jannabi, defiled the Zamzam Well with the bodies of pilgrims and stole the Black Stone, taking it to the oasis in Eastern Arabia known as al-Aḥsāʾ, where it remained until the Abbasids ransomed it in 952 CE. The basic shape and structure of the Kaaba have not changed since then.