Loading field map
Ancient religion is the study of the religious beliefs, practices, institutions, and experiences of the pre-Christian and pre-Islamic civilizations of the Mediterranean and Near East, most centrally those of ancient Greece and Rome, but also including Egypt, Mesopotamia, Anatolia, the Levant, and Persia. As a subfield of Classics, it treats religion not as a separate sphere of private belief but as a pervasive dimension of ancient social, political, and cultural life. Its central task is to reconstruct and interpret systems of meaning and action that are often radically different from modern Western religious categories, while also accounting for the historical connections between ancient traditions and later Judaism, Christianity, and Islam.
The term "religion" itself is a modern category, and much of the field's intellectual energy has gone into questioning whether it maps cleanly onto ancient realities. Ancient Greeks and Romans had no single word equivalent to the modern "religion." The Latin religio referred to scrupulous observance of ritual obligations, a sense of binding restraint, or the cult of the gods, rather than a system of doctrines or a private faith. The Greek eusebeia (piety) meant proper respect toward gods, parents, and the dead, expressed through action rather than belief. This has led scholars to treat ancient religion as a set of practices—sacrifice, prayer, votive offering, festival, divination, purification, and the maintenance of sacred spaces—organized around the central assumption that the gods were real, powerful, and responsive to human attention.
The field's geographical and chronological boundaries are conventional rather than natural. In practice, it covers the Bronze Age through late antiquity, roughly the second millennium BCE to the sixth century CE, and it includes the religions of the Greek-speaking and Latin-speaking worlds, as well as the Near Eastern traditions that Greeks and Romans encountered, absorbed, and sometimes misrepresented. Egyptian religion, with its elaborate mortuary cults and animal-headed deities, and Mesopotamian religion, with its temple economies and omen literature, are integral to the field because they shaped Greek and Roman practice and because the classical world defined itself partly against them. The mystery cults, the imperial cult, early Christianity, and the various philosophical schools that functioned as ways of life all fall within the field's scope, though the boundaries between "religion," "philosophy," and "magic" are themselves objects of investigation.
The field is organized around a cluster of enduring questions. The first concerns the nature of ancient belief. Did Greeks and Romans "believe" in their myths? Did they take their gods literally? The question is anachronistic if posed in modern terms, but it points to a real problem: ancient sources show a wide range of attitudes, from literal piety to skeptical mockery, often within the same author. The field has largely moved from asking whether people believed to asking how religious knowledge was produced, authorized, and contested.
A second question concerns the relationship between religion and the state. In the Greek polis and the Roman Republic and Empire, there was no separation of religion and politics. Priests were magistrates or appointed officials; festivals were public business; the health of the city was understood to depend on the correct performance of cult. The imperial cult—the worship of Roman emperors and their families—has been a particular focus of debate, with scholars asking whether it was genuine religion, political propaganda, or a language of loyalty that cannot be neatly classified.
A third question concerns change over time. Ancient religion was not static. The archaic Greek world of Homeric epic gave way to the classical polis religion, which was transformed by the conquests of Alexander, the rise of the Roman Empire, and the spread of Christianity. The field asks how these changes happened, whether they represent decline, evolution, or transformation, and how the rise of Christianity relates to the religious world it claimed to supersede.
A fourth question concerns the relationship between religion and other domains of ancient culture. Religion was embedded in literature, art, philosophy, medicine, and politics. The field therefore asks how religious ideas shaped these domains and how they in turn reshaped religion. This is not a question of "background" but of mutual constitution: a Greek tragedy is a religious performance, a Roman triumph is a religious procession, and a philosophical argument about the nature of the gods is a religious intervention.
The modern study of ancient religion emerged in the nineteenth century, shaped by the intellectual currents of Romanticism, comparative philology, and the rise of anthropology. Early scholars, many of them German classicists, approached Greek religion through the lens of myth, treating it as a primitive stage in the evolution of human thought. The "myth and ritual" school, associated with figures such as Jane Ellen Harrison and the Cambridge Ritualists, argued that myths were the spoken counterparts of rituals, and that ritual was the more fundamental phenomenon. This school was influenced by the anthropology of James Frazer, whose The Golden Bough (1890–1915) sought universal patterns in religion, and by the psychology of the unconscious, which suggested that myths expressed deep collective anxieties.
A rival tradition, associated with the German scholar Ulrich von Wilamowitz-Moellendorff, insisted that the study of Greek religion must be grounded in the close reading of texts and the reconstruction of historical contexts, rather than in comparative speculation. Wilamowitz's Der Glaube der Hellenen (1931–32) treated Greek religion as a historical phenomenon that changed over time, and he was skeptical of universalizing theories. This tension between comparative and historical approaches has persisted, though the terms of the debate have shifted.
The mid-twentieth century saw a decisive turn away from the study of myth and belief toward the study of practice. The French scholar Jean-Pierre Vernant and his colleagues in the "Paris school" of historical anthropology, including Marcel Detienne and Pierre Vidal-Naquet, argued that Greek religion was best understood as a system of representations embedded in social practices. They drew on structuralism, the anthropological method of Claude Lévi-Strauss, to analyze the underlying logic of Greek myths and rituals, showing how categories such as the raw and the cooked, the wild and the civilized, structured religious thought. Their work treated religion as a way of thinking, but a way of thinking that was inseparable from social institutions.
In the same period, the British scholar Walter Burkert and the American scholar Richard Gordon, among others, brought a different set of tools to bear. Burkert, influenced by ethology and the study of animal behavior, argued that sacrifice, the central ritual of ancient religion, was rooted in the biology of hunting and the psychology of guilt. His Homo Necans (1972) treated the sacrificial killing of animals as the generative act of Greek religion, a view that was influential but also controversial for its universalizing claims.
The late twentieth century saw a further shift toward the study of lived religion, local variation, and the experiences of ordinary people. Scholars such as Robert Parker in the study of Greek religion and Mary Beard, John North, and Simon Price in the study of Roman religion emphasized the diversity of ancient practice, the importance of local cults, and the ways in which religion was embedded in the rhythms of daily life. This turn was influenced by the broader "linguistic turn" in the humanities, which emphasized the constructed nature of categories, and by the rise of social history, which sought to recover the experiences of non-elite actors.
The field is not organized into a single succession of schools but into a set of overlapping approaches that often coexist and combine. The most important distinction is between those who emphasize the cognitive or symbolic content of religion and those who emphasize its social or practical functions. These are not mutually exclusive, but they lead to different questions and different methods.
The comparative approach, which dominated the field's early decades, seeks to understand ancient religion by placing it alongside other religious traditions, both ancient and modern. Its strength is its ability to identify patterns and to challenge the assumption that ancient religion was unique or exotic. Its weakness is its tendency to flatten historical specificity and to impose categories derived from one tradition onto another. The comparative approach has been most productive when it is disciplined by historical knowledge, as in the work of Burkert, who compared Greek sacrifice to Near Eastern and Vedic practices, or in the study of mystery cults, which have been compared to initiation rites in Africa and Melanesia.
The historical-philological approach, which remains the field's methodological core, treats ancient religion as a set of texts and material remains to be interpreted with the same rigor as any other historical source. Its practitioners are trained in Greek and Latin, in epigraphy (the study of inscriptions), and in archaeology. They reconstruct the details of cult practice, the organization of priesthoods, the calendar of festivals, and the history of individual sanctuaries. This approach is essential for establishing the facts on which all other interpretations depend, but it has sometimes been criticized for its empiricism—for accumulating details without asking what they mean.
The structuralist approach, associated with Vernant and his school, treats religion as a system of signs that can be analyzed like a language. Its practitioners look for the underlying oppositions and mediations that structure myths and rituals: male and female, mortal and immortal, wild and civilized, raw and cooked. This approach has been enormously influential in the study of Greek myth, but it has been criticized for its tendency to treat the system as static and to neglect historical change and individual agency.
The social-historical approach, which has become dominant in recent decades, treats religion as a social institution that both reflects and shapes power relations, gender relations, and class structure. Its practitioners ask who controlled religious institutions, who was excluded from them, and how religion legitimated or challenged social hierarchies. This approach has been particularly productive in the study of Roman religion, where the relationship between religion and imperial power is a central concern, and in the study of women's religious roles, which were more extensive and more varied than earlier scholarship recognized.
The cognitive approach, a more recent development, draws on the cognitive science of religion to explain why certain religious ideas and practices are culturally successful. Its practitioners argue that ancient religion, like all religion, is shaped by the evolved structure of the human mind: people are naturally inclined to detect agency, to attribute events to intentional causes, and to remember ideas that are minimally counterintuitive. This approach has been used to explain the persistence of anthropomorphic gods and the appeal of mystery cults, but it has been criticized for its reductionism and for its difficulty in accounting for historical specificity.
These approaches are not rival paradigms in the strict sense. Most scholars combine elements of several, and the field's most influential works typically do so. Burkert's work, for example, combines comparative, historical, and cognitive approaches. The relationship between approaches is better described as a division of labor than as a competition, though there are genuine disagreements about the relative importance of explanation and interpretation, and about whether religion should be explained in terms of its causes or understood in terms of its meanings.
The contemporary field is characterized by several durable features. The first is the centrality of material evidence. Inscriptions, votive offerings, temple architecture, and the remains of sacrificial animals are as important as literary texts, and the field has become increasingly archaeological in its methods. The excavation of sanctuaries such as Delphi, Olympia, and the Athenian Acropolis has transformed the understanding of Greek religion, and the study of Roman religion has been reshaped by the archaeology of Pompeii and Ostia.
The second is the expansion of the field's scope. The study of ancient religion now includes the religions of the Near East, which were once the province of separate disciplines, and it extends into late antiquity, where the boundaries between paganism, Christianity, and Judaism are increasingly understood as fluid and contested. The field has also become more attentive to regional variation, to the religions of the provinces of the Roman Empire, and to the interactions between Greek, Roman, and indigenous traditions.
The third is the influence of theoretical developments from outside the field. The study of gender has transformed the understanding of ancient religious roles, showing that women's participation in cult was more significant than earlier scholarship assumed. Postcolonial theory has raised questions about the representation of "oriental" religions in Greek and Roman sources, and about the ways in which the study of ancient religion has been shaped by modern imperial and colonial categories. The study of "magic," once dismissed as a degraded form of religion, has been rehabilitated as a legitimate object of study, and the boundary between religion and magic is now understood as a social construction rather than a natural distinction.
The fourth is the persistence of the field's central interpretive problem: the relationship between ancient religion and the religions that came after it. The study of ancient religion has always been entangled with the history of Christianity, and the field's practitioners have often been motivated by theological concerns, whether apologetic or critical. The contemporary field is more self-conscious about this entanglement, and it has produced sophisticated accounts of how Christianity emerged from, and transformed, the religious world of the Roman Empire. The question of whether ancient religion is best understood as a precursor to Christianity, as a world in its own right, or as a set of traditions with their own internal dynamics remains open, and it is likely to remain so.
The field's future is likely to be shaped by the continued integration of digital methods, which are making it possible to analyze large corpora of inscriptions and texts in new ways, and by the ongoing conversation with the cognitive and evolutionary sciences, which offer new explanations for the persistence and transformation of religious ideas. But the field's core commitment is likely to remain what it has been: the patient, critical reconstruction of a world in which the gods were as real as the city walls, and the attempt to understand that world on its own terms, without forgetting that our terms are not theirs.