Medina, Damascus, and Mecca. Due to this, Ibn Mujāhid selected one reading each for Medina, Mecca, Baṣra, and Damascus—those of Nafi‘ (died 169/785), Ibn Kathir (died 120/737), Abu ʿAmr (died 154/770), and IbnʿAmir (died 118/736), respectively—and three for Kūfa, those of ʿAsim (died 127/744), Ḥamza (died 156/772), and al-Kisaʾi (died 189/804). His attempt to limit the number of canonical readings to seven was not acceptable to all, and there was strong support for alternative readings in most of the five cities. In the present day the most common reading that is in general use is that of 'Aasim al-Kufi through Hafs. The 11th-century eastern Quranic manuscript contains the 20th juz' (section) of a Quran that originally consisted of 30 parts. The arrangement into 30 parts corresponds to the number of days in the month of Ramadan, during which the Muslim is obliged to fast and to read through the whole of the Quran. Other sections or fragments of this magnificent manuscript lie scattered in various collections all over the world. A Turkish note ascribes the Quran to the hand of the Caliph Ali, Muhammad's cousin and son-in-law, and thus demonstrates the high significance of this manuscript. The text is written in Eastern Kufic, a monumental script that was developed in Iran in the late 10th century. The writing and the illumination of the manuscript bear witness to the great artistic skills of the calligrapher and the illustrator. The manuscript is at the Bavarian State Library in Munich, Germany. Out of seven complete or nearly complete semi-Kufic Qurans from before the end of the eleventh century, four contain a verse count. Although a small sample, it does suggest that the use of a verse count was a prevalent and quite deeply rooted practice in semi-Kufic Qurans between ca. 950 and ca. 1100. Abu Ali Muhammad ibn Muqla (died 940), an accomplished calligrapher from Baghdad, was also a prominent figure at this time. He became vizir to three Abbasid caliphs and is credited with developing the first script to obey strict proportional rules. Ibn Muqla's system was used in the development and standardization of the Quranic script, and his calligraphic work became the standard way of writing the Quran. However it was later perfected by Ibn al-Bawwab (d. 1022), the master calligrapher who continued Muqla's tradition. Muqla's system became one of the most popular styles for transcribing Arabic manuscripts in general, being