Tariqa Kammiyya li-Dirasat Maajim al-Tarajim al-Islamiyya fi al-Usur al-Wusta
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Tariqa Kammiyya li-Dirasat Maajim al-Tarajim al-Islamiyya fi al-Usur al-Wusta (A Quantitative Approach to Medieval Muslim Biographical Dictionaries) is a historical study by the American scholar Richard Bulliet (رجارد بليت) that explores the application of statistical and quantitative methods to medieval Islamic biographical dictionaries for social and economic history .
Background and Publication
Originally written in English while the author was affiliated with Harvard University, the study was published in April 1970 in the Journal of the Economic and Social History of the Orient (Vol. 13, Part 2) under the title A Quantitative Approach to Medieval Muslim Biographical Dictionaries . It was later translated into Arabic by Shakir Nasif Latif al-Ubaydi, Assistant Professor in the Department of European Languages at the College of Arts, University of Baghdad . The Arabic version was published under the auspices of the Scientific Council at the Islamic University of Madinah, with an introductory presentation by the council's head, Akram Diya' al-Umari .
Scope and Methodology
The work investigates how the internal structure and compilation mechanisms of medieval Islamic biographical literature (kutub al-tarajim) can serve as quantitative sources for social and economic historians . Bulliet argues that because biographical dictionaries were largely aggregated from underlying mashyakhat (individual scholars' records of their teachers) rather than arbitrary author selections, their contents present a relatively uniform, reliable cross-section of the religious and scholarly class over long periods .
To test this approach, the study examines two sequential biographical compendia from Nishapur in Khurasan, available through facsimile editions published by Richard N. Frye: Tarikh Naysabur by al-Hakim al-Naysaburi (d. 405 AH) and its continuation, al-Siyaq li-Tarikh Naysabur by Abd al-Ghafir al-Farisi (d. 529 AH) .
The analytical method comprised several systematic steps:
- Extracting all onomastic relational names (nisbas) across biographical generations (tabaqat) .
- Isolating geographical nisbas from tribal, familial, and occupational designations, while excluding designations specific to Nishapur itself or its internal quarters .
- Dividing external geographical attributions into "local transit" (places within a 100-mile radius of Nishapur) and "long-distance transit" (places beyond 100 miles) .
- Classifying long-distance origins along four major route corridors leading into Nishapur, such as the northeastern route from China through Samarqand, Bukhara, Marw, and Sarakhs, and the southeastern route linking the lowlands north and south of the Hindu Kush through Balkh and Marw al-Rudh .
Historical Findings
By correlating statistical curves and graphs with general political narratives across the first five Islamic centuries, the study traced shifts in mobility and regional economic vitality . Among its demographic deductions was an estimated average lifespan of approximately 75 solar years for scholars of that period .
The analysis revealed how political dynamics influenced overland transport flows to and through Nishapur . For instance, following the Samanid victory over the Saffarids in 287 AH and the establishment of Bukhara as the Samanids' capital, the northeastern trade route expanded markedly . The study also illustrated the impact of Khurasan's growing autonomy from the Abbasid caliphate in Baghdad, as well as regional conflicts involving the Samanids, Buyids, Ghaznavids, and Seljuks . Bulliet observed that although Nishapur flourished culturally during its peak, international transit routes gradually bypassed it or dried up, sowing the seeds of its long-term economic decline .
Reception and Critical Evaluation
In his preface to the Arabic translation, Akram Diya' al-Umari praised the study's innovative methodological approach, noting that quantitative analyses can provide valuable insights into social and economic history where classical Islamic sources often focus primarily on political and literary affairs . However, he also pointed out that some conclusions contained forced deductions (ta'assuf) or potential misapprehensions rooted in the author's Western background, which prompted the addition of explanatory annotations to the Arabic edition . The translation's annotations also cautioned against conflating European conceptions of the "Middle Ages" as a dark epoch with the corresponding flourishing period of Islamic history .
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