Deen

How Islam Travelled

What came first, what came after, and how each school reached the countries it holds today, the routes, the mechanisms, and the dates.

Mohammad Siddiqui

— 87 min read
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How Islam Travelled, part three of three
Part three of three

What came first, what came after, and how each school reached the countries it holds today, the routes, the mechanisms, and the dates.

Mohammad Siddiqui, min readNine sections · two interactive figuresSources throughout

New to the Qur'an, or to this series? Start with The Qur'an: What It Is, How It Came Down, and How It Was Kept, then read Muhammad ﷺ: A Life. All articles: Deen: Start Here.

I

The order of formation

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Drawn in parallel lanes, because the sequence is the point. Popular accounts imply Sunni and Shia Islam split once, early, and then developed alongside one another. What the lanes show is that the Sunni canon and the end of the Shia imamate happen in the same generation, and that both are two centuries downstream of the political rupture.

The formative period, 610–1000 CE. Al-Bukhārī died in 870. The eleventh Imam died in 874.2820 They were contemporaries, and both are roughly two hundred years after Karbala. Everything that makes Sunnism identifiable as Sunnism postdates the lifetimes of most of the Twelve Imams. Neither tradition is the older one; they are assembled in parallel, and largely in the same century.

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Snapshots, what actually existed, and when

The clearest way to see the sequence is to ask what a Muslim alive in a given year would have recognised.

II

Nine engines of diffusion

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Schools did not spread because they persuaded. They spread because something carried them. These mechanisms account for nearly every arrival on the map, and knowing which one operated in a given place explains far more than any doctrinal comparison.

III

The routes

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A schematic, not a geographic map, regions are placed roughly by position and sized by nothing. What matters is the arrows: who fed whom, by what mechanism, and when. Filter by tradition to read one story at a time.

Three shapes worth seeing. Ḥanafism runs along a chain of states, Abbasid, Samanid, Seljuk, Ottoman, Mughal. Shāfiʿism runs along the monsoon, and touches almost no empire. Mālikism runs along the caravan, and reached West Africa with no state carrying it at all. The three great Sunni schools travelled by three completely different mechanisms, which is why their maps do not overlap.

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IV

Route by route

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Every tradition, in full, origin, mechanism, hop by hop with dates, and why it stuck. Where a date is contested or a causal story is scholarly inference rather than documented event-history, it says so.

V

The natural experiments

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The strongest evidence for the whole thesis is the set of places where a region changed school. Doctrine is held constant, the arguments of Mālik and Abū Ḥanīfa did not alter, and only politics varies. If doctrine drove distribution, these changes should not happen. They happen repeatedly.

The pattern in one line

A madhhab does not lose an argument. It loses appointments.

The Awzāʿī school was the official school of both Syria and al-Andalus. It is completely extinct, not refuted, not absorbed after a debate, but starved of judgeships in Iberia by an Umayyad preference for Mālik, and in Syria by a Shāfiʿī judge who offered material incentives to memorise Shāfiʿī texts. By the eleventh century, none of its adherents could be found anywhere.

Egypt changed official school four times in six centuries, Shāfiʿī, then Ismāʿīlī Shia under the Fatimids, then Shāfiʿī again under Saladin, then four parallel chief qāḍīs under the Mamluks,30 then Ḥanafī courts imposed over a Shāfiʿī population by the Ottomans in 1517.2 Same territory, same people, five legal regimes. Doctrine explains none of it.

VI

What moves things now

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The modern mechanisms are different in kind, and the scholarship has shifted noticeably in the last fifteen years, away from state funding as the master explanation, and towards migration, local institutional capacity, and the restructuring of religious authority by media.2327 Ranked by the weight the literature actually gives them.

The single most useful check on the funding thesis

Albania

Saudi and Gulf institutions distributed roughly a million Qur'ans in Albania and funded some two hundred mosques after 1991.34 Albania today reports among the lowest religious salience of any Muslim-majority country in the world.26

The lesson is not that money does nothing. It is that money buys infrastructure, and infrastructure only converts into adherence where local institutions were already strong enough to use it. Widely circulated totals for Saudi religious spending (the “$75 billion, 1,500 mosques, 2,000 schools” figure) are weakly sourced; Mandaville and Hamid, who wrote the standard study, decline to give a consolidated total at all.22

VII

Where it landed

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Region by region, the dominant school today, roughly when it arrived, and the mechanism that carried it. Read the right-hand column and the pattern is unmistakable.

One caution that applies to this entire table: no census of madhhab affiliation exists anywhere in the world. Pew measured the Sunni/Shia split only.33 Everything finer than that is inference from institutional presence and scholarly consensus, not survey data.

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VIII

The thesis, honestly scoped

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“The madhhab map is a map of medieval states and trade routes” is the claim this whole piece has been building. It is substantially true. It is also routinely overstated, and the honest version is more interesting than the slogan.

Where it is documented

The early-modern empires, mechanism, dates and paperwork

Guy Burak does not merely assert the correlation; he periodises it. His claim is that from the fifteenth century something genuinely new appears, “the era of the state madhhab”, in which dynasties determined not just who judged but which opinions were valid. He roots it in post-Mongol political culture, where rulers claimed a mandate to legislate.1

Rudolph Peters supplies the operational detail for the Ottoman case: exclusive Ḥanafī appointments, thirty-two sultanic orders on doctrine in the sixteenth century, and non-Ḥanafī qāḍīs demoted to deputies after 1517.2

For the classical period the best version is Nurit Tsafrir's: “the identification of Ḥanafism with Baghdad and the ʿAbbāsids is the reason for its success” in penetrating Khurāsān and Transoxiana.3

What the strongest version costs

Burak's own periodisation limits the claim

Note carefully what follows from dating state doctrinal control to after 1400: the classical madhhab map (Mālikī Maghreb, Shāfiʿī Egypt, Ḥanafī Transoxiana) was not produced by that mechanism, because that mechanism did not yet exist. The most rigorous statement of the thesis is also the one that most restricts its scope.

Peters adds a second constraint that cuts against pure politics: the Ottoman arrangement worked because Ḥanafī doctrine permitted such stipulation, and other schools' did not. Doctrine bounded what politics was able to do.

The pushback, in three lines

Doctrine, custom, and the autonomy of jurists

1. Institutional primacy. Drawing on Ahmed El Shamsy's The Canonization of Islamic Law (2013), the argument is that a founder's success required methodological innovation plus influential students, and that socio-political factors were insufficient alone. Note that the founders often resisted state power, Abū Ḥanīfa refused the caliph's offer of a judgeship; Ibn Ḥanbal was flogged and imprisoned.4

2. Schacht's older account attributes early regional legal difference to local variation in social conditions, customary law and practice, and offers no political explanation of school distribution at all.7

3. The jurists'-law thesis. Hallaq's position that Islamic law was substantially autonomous of the state is the framework-level objection to the whole picture; Vikør's history of law between the scholars and the rulers makes a similar case.65

Where the slogan is weakest

“States” and “trade routes” are not the same claim

The thesis is weakest precisely where it is stated most confidently. The maritime Shāfiʿī zone and Mālikī West Africa were shaped far more by trade, marriage and clerical lineage than by any state adopting a school.

Two facts settle it. The Hadrami sayyids had no state at all, and they supplied the religious authority of the entire Indian Ocean rim.89 The Ibāḍīs had a state, Oman, and a maritime empire reaching Zanzibar, and still failed to spread. If states were the master variable, those two results are backwards.

A note on sourcing: no single canonical one-line scholarly formulation of “the madhhab map is a map of medieval states” appears to exist. The commonplace circulates widely; the citable versions are the scoped, careful ones above.

What survives all of that

The mechanism that actually explains the map is endowment, not patronage

Patronage is reversible: a ruler's preference dies with the ruler. The Almohads sponsored Ẓāhirism and burned Mālikī books, and when the Almohads fell, Ẓāhirism fell with them and Mālikism resumed. State sponsorship turns out to be neither sufficient nor durable on its own.

What is durable is the waqf. The Niẓāmiyya of Baghdad, founded 1065–67, carried a standing requirement that every teacher, preacher and librarian be Shāfiʿī in law and Ashʿarī in creed.29 An endowment is perpetual and its terms bind future administrators, so endowing a chair for a named school converts a momentary preference into an unalterable, self-financing, multi-generational salary line that outlives the dynasty that created it.

And where there was no state and no endowment, West Africa, a compact, teachable canon did the same work. The Risāla of Ibn Abī Zayd, the Mukhtaṣar of Khalīl, the fatwas of al-Wansharīsī: a curriculum small enough to cross a desert on a camel and complete enough to reproduce a school through clerical lineages without any state at all. Which is why Mālikism in West Africa survived the collapse of Songhay and French colonisation alike.1110

IX

Glossary

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Every technical term used on this page, in one place. The first appearance of each in the text above carries its definition on hover or focus.

X

Sources and flags

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Dates corrected against sources during research, worth knowing if you have the older figures: the Fatāwā-yi ʿĀlamgīrī is 1664–1672, not 1667–75; the Rustamid imamate at Tāhert runs from 776/777, not 761 (which is Abū al-Khaṭṭāb's death); Said b. Sultan moved his capital to Zanzibar in 1840, with 1832 unverified; Qom's Shia foundation is given as 85/704 by WikiShia against the commonly cited 712.

Figures that circulate widely and should not be repeated as fact: Saudi religious spending totals; Tablīghī Jamāʿat membership (Pew's own range is 12–80 million, and no point estimate is defensible); “Barelvi 200 million”; the Shia share of Pakistan's population, for which no census figure exists and the 5–20% range is politically contested; and “20,000 Sunnis killed at Tabriz” in 1501, which is a chronicle figure, not a demographic one.

The state-madhhab thesis

  1. Guy Burak, “The Second Formation of Islamic Law: The Post-Mongol Context of the Ottoman Adoption of a School of Law”, Comparative Studies in Society and History 55:3 (2013)
  2. Rudolph Peters on Ottoman judicial administration, paper
  3. Nurit Tsafrir, The History of an Islamic School of Law: The Early Spread of Ḥanafism (Harvard, 2004)
  4. Ahmed El Shamsy, The Canonization of Islamic Law: A Social and Intellectual History (Cambridge University Press, 2013)
  5. Knut Vikør, Between God and the Sultan
  6. Wael B. Hallaq, The Origins and Evolution of Islamic Law (Cambridge University Press, 2005)
  7. Joseph Schacht, The Origins of Muhammadan Jurisprudence (Oxford, 1950)

Trade, conversion and the Indian Ocean

  1. Engseng Ho, The Graves of Tarim: Genealogy and Mobility across the Indian Ocean (University of California Press, 2006), the Hadrami sayyid mechanism
  2. COMPAS Oxford, “The Hadramis of the Indian Ocean”
  3. Stanford FSI, The Spread of Islam in West Africa, note it does not name the Mālikī school
  4. Nehemia Levtzion and Randall L. Pouwels (eds), The History of Islam in Africa (Ohio University Press, 2000)
  5. Encyclopædia Britannica, “Mūsā I of Mali”, the pilgrimage of 1324
  6. M. C. Ricklefs, A History of Modern Indonesia since c. 1200 (Stanford University Press, 4th ed. 2008), part I on the coming of Islam
  7. Michael Laffan, The Makings of Indonesian Islam: Orientalism and the Narration of a Sufi Past (Princeton University Press, 2011)
  8. Richard M. Eaton, The Rise of Islam and the Bengal Frontier, 1204–1760 (University of California Press, 1993; free online edition)
  9. Richard M. Eaton, India in the Persianate Age, 1000–1765 (Allen Lane / University of California Press, 2019)

Shia diffusion

  1. Encyclopaedia Iranica, Jabal ʿĀmel (Rula Jurdi Abisaab, 2007: “more than 158” ʿĀmilī émigré scholars in Safavid Persia), al-Karakī, Shiʿites of Iraq
  2. Encyclopædia Britannica, “Ismāʿīl I, shah of Iran”: Tabriz taken and Shiʿism proclaimed the established religion in 1501
  3. Rula Jurdi Abisaab, Converting Persia: Religion and Power in the Safavid Empire (I. B. Tauris, 2004)
  4. Heinz Halm, “ʿAskarī, Abū Moḥammad Ḥasan”, Encyclopaedia Iranica: died at Sāmarrā 8 Rabīʿ I 260 / 1 January 874 “without leaving any obvious heirs”, and the groups that formed after
  5. The Ismaili diaspora · AKDN, Seat of the Imamat, Portugal

Modern propagation

  1. Peter Mandaville & Shadi Hamid, Islam as Statecraft (Brookings, 2018)
  2. Carnegie, “Has Saudi funding spread Wahhabism?”
  3. CREST, British Muslims: Sectarian Movements
  4. Pew, “Muslim Networks and Movements in Western Europe: Tablīghī Jamāʿat” (2010)
  5. Pew Research Center, The World's Muslims: Unity and Diversity, ch. 2, “Religious commitment” (2012): 15% of Albanian Muslims call religion very important, the lowest of any country surveyed
  6. Olivier Roy, Globalized Islam; Gary Bunt, Hashtag Islam

Formation and institutions

  1. Jonathan A. C. Brown, The Canonization of al-Bukhārī and Muslim (Brill, 2007)
  2. Al-Niẓāmiyya of Baghdad and the Niẓāmiyya network; Encyclopædia Britannica, “Niẓāmiyyah”, which dates the Baghdad foundation to 1067
  3. Yossef Rapoport, “Legal Diversity in the Age of Taqlīd”, ILS 10:2 (2003)
  4. UNESCO World Heritage Centre, “Timbuktu”: Sankore and the city's 15th- and 16th-century learning; the mosques restored by Imam al-ʿĀqib, 1578–1582
  5. Islamic University of Madinah (1961)

Demography

  1. Pew Research Center, Mapping the Global Muslim Population (7 October 2009): Sunni 87–90%, Shia 10–13%
  2. Antoine Sfeir (ed.), The Columbia World Dictionary of Islamism (Columbia University Press, 2007), entry on Albania: Saudi NGOs built some 200 mosques and King Fahd donated one million Albanian-language Qur'ans. Located through its citation in Wikipedia; I have not seen the printed page.
  3. Mustafa Shah, “Ibn Qudāma al-Maqdisī”, Encyclopaedia of Islam, THREE (Brill, 2023): born at Jammāʿīl in Shaʿbān 541/January 1147, family moved to Damascus in 551/1156, died 1 Shawwāl 620/28 October 1223; SOAS Research Online

Madhhab shares throughout are directional estimates. Nothing counts madhhab affiliation anywhere.

Further reading

Six books to start with, chosen for a reader with no prior background. This is a different list from the sources above, which are there so the claims can be checked.

  • Richard W. Bulliet, Conversion to Islam in the Medieval Period (Harvard, 1979)The curve that reframed everything: conversion was slow, and mostly happened centuries after the conquests. Method is contested, conclusion has held.
  • Nile Green, Sufism: A Global History (Wiley-Blackwell, 2012)Treats the orders as social institutions that moved people and money, not as a mood. The best account of the mechanism this page calls the Sufi engine.
  • Engseng Ho, The Graves of Tarim (California, 2006)Five centuries of Ḥaḍramī sayyid migration across the Indian Ocean, followed through genealogies and gravestones. The monsoon route made vivid.
  • Michael Laffan, The Makings of Indonesian Islam (Princeton, 2011)How the world's largest Muslim population became Shāfiʿī, and what colonial scholarship did to the categories we still use for it.
  • Peter Mandaville & Shadi Hamid, Islam as Statecraft (Brookings, 2018)The standard study of state religious diplomacy, and the reason the widely quoted Saudi spending totals are not repeated on this page.
  • Nehemia Levtzion (ed.), Conversion to Islam (Holmes & Meier, 1979)Region-by-region case studies. Old, uneven, and still the fastest way to see how differently conversion worked in each place.
Third in a series. The first traced the origins and the scriptural evidence; the second the genealogy, the schools and the fidelity question; this one the routes. Where a causal story is scholarly inference rather than documented event-history, it is marked as such.
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Cite this page

Siddiqui, M. “How Islam Travelled.” mohammadsiddiqui.com.

Part of a three-part series on the origins, anatomy and diffusion of the Sunni–Shia divergence. Where a causal story is scholarly inference rather than documented event-history, it is marked as such.
← Part II · The House and the Schools ↑ Top

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