Summary
The secularization thesis — the prediction that modernization would lead to the progressive decline of religion as a social force — was the dominant sociological theory of religion from the late nineteenth century through the mid-twentieth. By the early twenty-first century, the thesis had been substantially revised. José Casanova's Public Religions in the Modern World (1994), Peter Berger's reversal in The Desecularization of the World (1999), Charles Taylor's A Secular Age (2007), and the global empirical work of Pippa Norris and Ronald Inglehart have together produced a more complex picture. Within Maslik 4 (Innate Religious), the secularization question functions as an empirical test of the fiṭra thesis: if humans are structurally religious, what happens when modernization presses against religion at the social-institutional level? The empirical record, on careful examination, supports the framework's position more than it refutes it.
The Classical Secularization Thesis
The classical secularization thesis emerged from the founding generation of sociology — Auguste Comte, Karl Marx, Émile Durkheim, Max Weber. The basic prediction: as societies modernize (urbanize, industrialize, rationalize their institutions, develop science and education), religion will progressively decline as a social force. Religion belongs to traditional society; modernity will displace it.
The prediction operated at three distinct levels.
Decline of religious institutions. Churches, mosques, temples would lose membership and social authority as modernization proceeded.
Decline of religious belief. Individual religious conviction would decline as scientific worldview spread.
Privatization. Whatever religion survived would be pushed out of public life and confined to private spheres.
The thesis seemed to fit the European experience of the nineteenth and twentieth centuries. Church attendance declined; religious authority over education, family, and politics receded; religious belief became more diverse and contested. By the mid-twentieth century, many sociologists treated the secularization thesis as established.
The Empirical Difficulties
By the late twentieth century, several empirical difficulties had become impossible to ignore.
Religious resurgence globally. The decades after 1970 witnessed substantial religious resurgence in many parts of the world — the Iranian Revolution (1979), the rise of evangelical Christianity in Latin America and Africa, the growth of conservative Islam across the Muslim-majority world, the persistence of religion in the United States despite its modernization. These developments did not fit the prediction.
The American exception. The United States — among the most modernized, urbanized, and scientifically developed societies — has consistently shown high levels of religious participation and belief. On the classical thesis, the United States should be more secular than Europe; in fact, it is substantially less so.
The Soviet experiment. The Soviet Union and other Communist states aggressively secularized their populations for decades. Religion's resurgence in post-Soviet space (Russia, Eastern Europe, Central Asia) after 1991 was substantial. Forced secularization produced not durable secularity but temporary suppression.
Quasi-religious displacement. Where institutional religion declined, quasi-religious phenomena often expanded: new religious movements, ideological commitments (nationalism, racism, certain forms of political extremism), wellness and spirituality movements. Religion-shaped commitments survived even where confessional religion declined.
The Casanova Revision
José Casanova's Public Religions in the Modern World (1994) provided the most influential systematic revision. Casanova argued that the secularization thesis should be disaggregated into its three components.
Differentiation (the separation of religion from other social spheres — politics, economy, education) is real and has happened in modern societies.
Decline (the progressive disappearance of religion) is empirically weak. Religion has not disappeared globally; it has changed form in some places and expanded in others.
Privatization (the confinement of religion to private life) is also empirically weak. Religion has returned to public life across many societies through political mobilization, civil society engagement, and policy advocacy.
Casanova's framework preserved what was right in the classical thesis (differentiation has occurred) while rejecting what was wrong (the prediction of decline and privatization). His framework has been widely adopted in contemporary sociology of religion.
Peter Berger's Reversal
Peter Berger's intellectual trajectory is itself illustrative. Berger was one of the most influential twentieth-century defenders of the secularization thesis (The Sacred Canopy, 1967). By the late 1990s, he had publicly reversed his position.
In The Desecularization of the World (1999, edited volume), Berger wrote: "The world today, with some exceptions to which I will come presently, is as furiously religious as it ever was, and in some places more so than ever. This means that a whole body of literature by historians and social scientists loosely labeled 'secularization theory' is essentially mistaken."
Berger's reversal is significant because it came from one of the thesis's most careful defenders. He had not abandoned sociology; he had revised his position in response to evidence that had accumulated over the decades since The Sacred Canopy.
Charles Taylor's A Secular Age
Charles Taylor's A Secular Age (2007) provides the most philosophically sophisticated treatment of the contemporary religious-secular landscape. Taylor argues that what has changed in modern Western societies is not the elimination of religion but a shift in the conditions of belief. In medieval Christendom, religious belief was the default; not believing required substantial effort. In modern Western societies, religious belief is one option among several; both believing and not believing require reflective commitment.
Taylor calls this the shift from a "naive" to a "reflective" frame. The shift does not eliminate religion; it transforms the conditions under which religion is held. Religious belief in modern Western societies is therefore different from religious belief in pre-modern Christendom, but it is not obviously less — it is just held differently.
This framework illuminates the empirical picture. The classical secularization thesis confused the change in the conditions of belief with the disappearance of belief. The change is real; the disappearance is not.
Norris-Inglehart and the Existential Security Thesis
Pippa Norris and Ronald Inglehart's Sacred and Secular: Religion and Politics Worldwide (2nd ed. 2011) provides extensive empirical analysis. Their proposal: religiosity correlates with existential insecurity. In societies with high levels of existential security (developed welfare states, low poverty, high life expectancy, low risk), religion declines somewhat. In societies with high existential insecurity (lower development, conflict, poverty), religion remains strong.
The thesis preserves some of the classical modernization-secularization correlation but reinterprets the mechanism. Modernization does not itself eliminate religion; existential security partially does. Where existential security is reversed (war, economic collapse, cultural disruption), religion can return rapidly.
The Norris-Inglehart thesis has substantial empirical support. It also remains compatible with the framework's position: even in highly secure societies, religion does not disappear; it changes form and intensity but persists. The framework's fiṭra reading is consistent with religion being modulated by existential conditions while not being eliminated by them.
The Framework's Reading
The framework's position can now be stated.
The classical secularization thesis was empirically wrong. The prediction that modernization would progressively eliminate religion has not been confirmed by the global empirical record.
The fiṭra thesis is consistent with the empirical
record. The persistence of religion across diverse
societies, the resurgence in post-Soviet space, the
American exception, and the quasi-religious
displacement phenomena are all consistent with the
framework's claim that religiosity is structural to
the human (see fitra-doctrine-in-islam,
cognitive-science-of-religion,
born-believers-childrens-intuitive-theism).
The fiṭra thesis is not refuted by what secularization did occur. Differentiation (Casanova's distinction) is consistent with the fiṭra reading: humans remain religious while the social institutions of religion separate from other domains. The Taylor framework captures this: religion changes form (the conditions of belief shift) without disappearing.
The secularization question contributes modestly to the cumulative case. The empirical persistence of religion across modernization is one piece of evidence for the framework's broader claim. It is not a proof; it is consistent with the framework's position and not consistent with the strong classical alternative.
What the Article Establishes
Contributions:
- A map of the classical secularization thesis and its revision.
- Engagement with the major contemporary positions (Casanova, Berger, Taylor, Norris-Inglehart).
- The framework's reading: empirical record supports rather than refutes the fiṭra thesis.
Limits:
- The article does not exhaust contemporary sociology of religion.
- The article does not claim that fiṭra is proven by the empirical record. The argument contributes to the cumulative case.
Connections to Other Masalik
- Maslik 4 (this maslik): companion to
fitra-doctrine-in-islam,cognitive-science-of- religion,classical-reductive-theories-of- religion(Weber and the classical sociological tradition),born-believers-childrens-intuitive- theism,draz-religion-and-fitra. - Maslik 0 (Transversal): connects to
religion-and-violence(questions about the public role of religion in modern societies). - Maslik 5 (Prophetic): Weber's prophetic-
charisma framework is the classical sociological
background. See
weber-charisma-and-prophecy.
Key Distinctions
- Classical secularization thesis (decline, privatization, disappearance) vs. revised thesis (differentiation without disappearance)
- Differentiation (real) vs. decline (weak) vs. privatization (weak) — Casanova's disaggregation
- Pre-modern naive belief frame vs. modern reflective belief frame (Taylor)
- Existential insecurity → religion (Norris- Inglehart) — the empirical correlation
- Berger 1967 (defender) vs. Berger 1999 (revisionist) — the intellectual trajectory
- Persistence of religion (the actual record) vs. predicted elimination (the classical thesis)
Major Proponents (of the classical thesis,
largely abandoned)
- Auguste Comte — Cours de philosophie positive
- Max Weber — The Protestant Ethic and the Spirit of Capitalism (1905)
- Émile Durkheim — Les formes élémentaires (1912)
- Peter Berger (early career) — The Sacred Canopy (1967)
- Bryan Wilson — Religion in Secular Society (1966)
- Steve Bruce — Secularization: In Defence of an Unfashionable Theory (2011) — one of the few remaining defenders
Major Critics (of the classical thesis)
- José Casanova — Public Religions in the Modern World (1994)
- Peter Berger (late career) — The Desecularization of the World (1999)
- Charles Taylor — A Secular Age (2007)
- Pippa Norris and Ronald Inglehart — Sacred and Secular (2011)
- Rodney Stark and Roger Finke — Acts of Faith (2000); religious-markets approach
- Grace Davie — Religion in Britain; believing without belonging
- Talal Asad — Formations of the Secular (2003); genealogical critique of "the secular"
Further Reading
- José Casanova, Public Religions in the Modern World, University of Chicago Press, 1994
- Peter Berger, ed., The Desecularization of the World: Resurgent Religion and World Politics, Eerdmans, 1999
- Charles Taylor, A Secular Age, Belknap Press of Harvard, 2007
- Pippa Norris and Ronald Inglehart, Sacred and Secular: Religion and Politics Worldwide, 2nd ed., Cambridge University Press, 2011
- Rodney Stark and Roger Finke, Acts of Faith: Explaining the Human Side of Religion, University of California Press, 2000
- Steve Bruce, Secularization: In Defence of an Unfashionable Theory, Oxford University Press, 2011
- Talal Asad, Formations of the Secular: Christianity, Islam, Modernity, Stanford University Press, 2003
- Grace Davie, Religion in Britain Since 1945: Believing without Belonging, Blackwell, 1994
- Ahmet T. Kuru, Secularism and State Policies toward Religion, Cambridge University Press, 2009