Why Ramsay MacMullen's Book Is Still Worth Reading
MacMullen's "Paganism in the Roman Empire" came out in 1981 and it's dense, but not in the way most academic books are. The writing is clear. The argument is straightforward enough that you won't need a second reading to follow it. What makes it tricky is the scope. The central claim is that Roman paganism wasn't a system of beliefs the way Christianity is. It was a set of practices, rituals, and social obligations. MacMullen treats it more like anthropology than theology. He walks through the evidence: temples, sacrifices, festivals, household shrines, imperial cult, mystery religions. He argues that for most ordinary Romans, religious affiliation didn't mean subscribing to a creed. It meant showing up. Most people don't realize how much of his argument depends on archaeological evidence rather than texts. The literary record is sparse and often hostile, especially from Christian writers. MacMullen fills those gaps with inscriptions, coinage, temple architecture, and the material record. That's where the book earns its weight.
How the Argument Actually Works
He breaks the empire down chronologically and then thematically. Early chapters cover the traditional pantheon and the mechanisms of public worship. Later sections deal with the spread of Eastern cults, the imperial cult, and the philosophical currents that ran parallel to popular religion. The final chapters examine why Christianity succeeded where other mystery religions failed. One point that surprises casual readers is his treatment of philosophical paganism. The Stoics and Platonists weren't really pagans in the popular sense. They were busy reinterpreting traditional religion through abstraction. Most of the population didn't care about that. MacMullen draws a sharp line between elite intellectual paganism and the actual practice of ordinary people. That distinction matters. Another counter-intuitive detail: he argues that Roman gods were interchangeable in practice. You could address a god by any number of names and the ritual worked. Syncretism wasn't a problem for them. It became a problem only when Christianity demanded exclusive allegiance. That's a small point but it changes how you read the whole transition period.
Where the Book Falls Short
It's been over forty years since publication. New archaeological work has refined some of his conclusions. The evidence from Egypt and the Near East has expanded considerably since 1981. Some of his readings of specific sites feel dated now. A few scholars have pushed back on his characterization of the imperial cult as merely political. It was probably more complex than he gives it credit for. There's also the question of regional variation. MacMullen tends to generalize from Mediterranean patterns. Gaul, Britain, and the Danube provinces get less attention than they deserve. If you're working on a specific region, this book will give you a foundation but not a complete picture.
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How I Used It in Practice
I was researching household religious practice in second-century Gaul for a paper and ran into a problem. MacMullen describes domestic shrines briefly but doesn't go deep on the Germanic and Celtic substrate underneath Roman practice. I needed to reconcile his framework with the archaeological record from sites like Trier and Cologne, where native and Roman elements are merged in ways that don't fit his categories cleanly. The workaround was to treat his model as a skeleton and layer in the provincial evidence separately. I cross-referenced with works by Versluys and Verspay on provincial religion, and with the inscriptions from the region. That gave me a workable synthesis without forcing the data into MacMullen's mold. The book is still the best starting point for that kind of work.
What to Expect If You Read It
Don't expect a systematic theology of paganism. There isn't one to systematize. Don't expect extensive primary sources quoted in full. MacMullen translates or paraphrases most of them. The footnotes are useful but you'll need to look up some of the older references on your own. The book is about 150 pages of text. It's lean. You can read it in a weekend if you're paying attention. The real work comes after, when you're deciding which parts to trust and which parts need updating with newer research.
Where to Find It
The Yale University Press edition is the standard reference. It's available through most academic bookstores and library systems. There's a paperback reprint that's widely available. Used copies show up regularly on AbeBooks and Amazon Marketplace. A PDF exists in various academic repositories but the pagination gets messy if you're citing it in a paper. Better to use a physical copy or an official e-book version.
