In the year 1000, if you wanted to build a hospital, a school, or a library in most of the known world, you needed a church. Not because the church was clever, or uniquely virtuous, but because the church had solved a problem that nothing else had: how do you get people who've never met, who don't share blood ties or immediate economic interests, to cooperate at scale? The answer, for a thousand years, across multiple continents and traditions, was theology. Whether the theology was true was, in a practical sense, beside the point. It worked.
So yes: religion civilised us. And also: religion did not deserve all the credit it took for it. Both things are true, and disentangling them matters more than picking a side.
What Religion Actually Provided
Large-scale human cooperation is surprisingly hard. Evolutionary pressures shaped us for small-group dynamics: trust your kin, be suspicious of strangers, defect when you can get away with it. For most of human prehistory, this was adequate. It becomes catastrophically inadequate when you're trying to build cities, maintain trade routes, or raise armies for collective defence.
Religion solved the cooperation problem by extending the moral circle through shared narrative and shared accountability to a third party that was always watching. If you cheat the stranger at the market, God knows, and the consequences extend beyond what any human sanction could reach. This is a powerful enforcement mechanism even if the mechanism is fictitious, because the behaviour it produces is real. Shared ritual creates social cohesion. Shared doctrine creates predictable norms. The institution of the church provided continuity across generations in a way that states often couldn't.
The Credit Problem
The complication is that religion has historically been very good at claiming credit for the general civilisational project, art, science, charity, law, while the actual relationship is more tangled. The great medieval cathedrals were built with religious motivation; they were also products of engineering knowledge, economic surplus, and political will that had non-theological roots. The universities that emerged from the monasteries were funded by church patronage; they also produced ideas that eventually undermined church authority. The claim that religion caused civilisation consistently underestimates how much of what looks like religious achievement was civilisation happening anyway, using available institutional channels.
The secular version of this error runs in reverse. The argument that religion was merely parasitic on a civilisational impulse that would have found other vessels is also too clean. In the absence of the specific institutional infrastructure that religion provided, the hospitals, the schools, the mechanisms of moral accountability, the framework for distributing charity, the alternative might not have been an equally effective secular equivalent. It might have been nothing.
The Actual Question
The real question, the one worth answering, is whether the theology was necessary for the infrastructure to exist, or whether the infrastructure just happened to be housed in theological institutions for contingent historical reasons. This is a genuinely difficult empirical question, and neither atheists nor believers are particularly good at answering it, because both sides have strong interests in particular conclusions.
The evidence suggests the infrastructure mattered enormously and the theology was partially separable from it. Societies that developed similar institutional structures through different legitimating frameworks, Confucian social organisation, secular legal systems, democratic civic culture, showed comparable capacities for large-scale cooperation. The church was not the only possible solution. But it was, for a long time, the one that worked, and pretending otherwise is not honesty. It's motivated revisionism.
Religion civilised us. Whether it needed to be religion is a different question, and the honest answer is probably that something did.
Disagree? Say so.
Genuine pushback is welcome. Personal abuse is not.
