The archæology of Rome, Part 7

In Short

This work is a technical archaeological study of the Colosseum, challenging the traditional view that the structure was built entirely by the Flavian emperors in ten years. Through meticulous analysis of excavations, brickwork, and drainage systems, the narrative argues that the site evolved over a century, incorporating older Neronian and even earlier republican foundations. It provides a granular look at the amphitheatre’s construction, its sophisticated water-management machinery, and its role as a venue for both gladiatorial combat and elaborate naval battles, or naumachia, serving as a foundational text for modern Roman architectural studies.

The Story

The narrative begins by dismantling a long-held misconception: that the Colosseum was an isolated, short-term construction project of the Flavian dynasty. Instead, the author presents the building as a cumulative architectural achievement that spans more than a century of Roman history. By examining the structural layers revealed in the excavations of 1874 and 1875, the text identifies remnants of older tufa walls that predate the Flavian era, suggesting the site was already in use during the time of Sulla the Dictator. The author posits that the project began with the private, extravagant works of Scaurus, whose "insane" theatre project set a precedent for large-scale public entertainment structures.

As the argument progresses, the focus shifts to the Neronian period, which the author identifies as a crucial phase in the building’s development. It is here that the narrative highlights the existence of a complex subterranean network of canals and reservoirs—the stagna—intended for naumachia. These were not mere decorative ponds but functional hydraulic systems that could be rapidly flooded and drained. The author meticulously connects these features to the later, more famous stone exterior, arguing that the Flavian engineers did not start from scratch, but rather wrapped their monumental stone arcades around existing brick-faced galleries and hydraulic infrastructure.

The arc of the book reaches its technical zenith in the analysis of the arena floor itself. Contrary to the image of a permanent ground, the author demonstrates that the arena was a sophisticated, modular wooden platform covered in sand, supported by corbels and intricate machinery. This floor functioned like a theatrical stage; it could be removed to reveal the dens, lifts, and water channels below, allowing for the rapid transition between gladiatorial games and naval combat. The author argues that this adaptability was the true genius of the Roman architects.

The final chapters trace the history of the building’s maintenance and its struggle against natural forces. The narrative details how the upper wooden galleries were repeatedly decimated by fire—most notably in A.D. 217—and how subsequent emperors, including Alexander Severus and Gordianus III, undertook significant stone restorations to secure the structure. The author concludes by comparing the Roman site to similar structures in Capua and Pompeii, using these provincial examples to reinforce the technical argument regarding Roman drainage, reservoir construction, and the mechanical requirements of the shows. The story ends not with a grand finale, but with a call for the preservation of these layers of history, emphasizing that the Colosseum is a palimpsest of Roman engineering that must be studied through its physical, material reality rather than through simplified historical tradition.

How It Unfolds

The challenge to tradition The author begins by critiquing the common belief that the Flavian emperors built the entire structure in ten years. He introduces evidence from ancient authors and modern excavations to argue that the project was a century-long endeavor involving multiple stages of construction.

The Neronian foundation The narrative moves to the substructures, identifying brickwork and hydraulic systems that date to the reign of Nero. These remains prove the existence of an earlier, functional amphitheatre or theatre that provided the blueprint for the later, more famous stone exterior.

The machinery of spectacle The focus shifts to the technical marvels beneath the arena floor, including the lifts, dens for wild beasts, and the modular wooden stage. The author explains how these components functioned together to create sudden, astonishing effects for the spectators.

The hydraulic engineering A detailed exploration of the stagna and naumachia follows, documenting the reservoirs and aqueducts required to flood the arena. The author compares these features to evidence from Capua, confirming that naval displays were a standard, though mechanically complex, part of the Roman experience.

Fire, ruin, and restoration The final section covers the physical decline of the building, including the fire of A.D. 217 and the subsequent stone reinforcements. The author concludes by advocating for a rigorous, commission-based approach to archaeology, prioritizing physical evidence over the conjectures of past scholars.

The People

The figures in this history are defined less by personality than by their roles as builders, patrons, and critics of Roman grandeur.

Scaurus appears as a pivotal, if controversial, figure; the author identifies him as a man of "insane" ambition whose extravagant, albeit temporary, theatrical projects established the architectural vocabulary that would eventually define the Colosseum.

Nero emerges as a primary innovator whose influence is embedded in the very brickwork and hydraulic foundations of the site. His "sea" or stagnum represents the scale of ambition that transformed the Roman landscape, though the author notes that later emperors often claimed the credit for work he initiated.

The Flavian Emperors—Vespasian and Titus—are presented as the master integrators. They are credited with the monumental stone arcades that give the building its iconic look, yet the author insists they were building upon the infrastructure and planning established by their predecessors.

Gordianus III and Alexander Severus appear as the essential restorers. Their contributions, particularly following the destructive fire of A.D. 217, are framed as vital to the building’s survival, representing a period when the Empire had to commit significant resources to maintain the aging, stone-supported structure against the forces of time and earthquake.

Pliny functions as the essential chronicler, whose detailed, sometimes critical observations provide the text with its primary ancient evidence, allowing the author to bridge the gap between historical hearsay and the physical reality of the excavated ruins.

In Its Own Voice

Regarding the sophisticated nature of the arena’s design, the author notes the precision of the infrastructure:

These excavations have enabled us to ascertain that this had been a boarded floor covered with sand, or arena (whence its name), and that this floor could be moved and replaced in a short time, at the word of the Emperor.

The author emphasizes the importance of looking past the myths of later scholars:

It is only one of the so-called “Roman Traditions,” which (as I am obliged to repeat continually) are nothing but the conjectures of learned men during the last three centuries, especially Panvinius and his school in the seventeenth.

The author reflects on the theatrical, almost magical quality of the Roman games:

The eyes of the silly people are astonished at all these sudden movements, the causes of which they do not understand.

What It's Really About

At its core, this book is an argument for material evidence over narrative convenience. It seeks to demystify the Colosseum by treating it as an engineering problem rather than a static monument of imperial glory. The central theme is the evolution of Roman technology, specifically in hydraulics and structural mechanics. The author is deeply preoccupied with the question of how an ancient society, lacking modern tools, could achieve such complex feats of environmental and theatrical engineering. By focusing on the "how"—the placement of corbels, the lead lining of canals, and the composition of brickwork—the author shifts the focus from the identity of the emperors to the ingenuity of the architects and the physical survival of their work.

Why Read It Today

Readers with a penchant for historical detective work will find this volume deeply rewarding. It offers a rare, ground-level perspective on the Colosseum, stripping away the romantic haze that typically surrounds the monument to reveal the gritty, mechanical reality of Roman life. You will walk away with a profound appreciation for the sheer technical audacity of the Roman Empire, as well as a newfound skepticism toward "traditional" history.

However, the book is not for the casual reader seeking a light, narrative-driven history. The prose is dense, technical, and heavily laden with cross-references, site measurements, and scholarly debates of the 1870s. The author’s Victorian-era tone is assertive and occasionally dismissive of other experts, which can feel somewhat jarring to modern sensibilities. You must be prepared to navigate through long lists of references and discussions of stone types and brick dimensions. Yet, for those who enjoy the feeling of being in the trenches with an archaeologist—sorting through rubble, questioning established dates, and piecing together the functional logic of an ancient machine—it remains a vital, enduring text. It captures the spirit of early, rigorous fieldwork, leaving the reader with a permanent, structural understanding of how the most famous building in the world actually functioned.