THE COMPLETE ENCYCLOPEDIA · A fully-referenced historical library Roma · 753 BC – AD 476 (and Byzantium to 1453)
Encyclopaedia · Fully Referenced · Every Person & Event

The Complete Encyclopedia of Ancient Rome

From the legendary twins Romulus and Remus on the Palatine Hill to the fall of the Western Empire — the full twelve-hundred-year history of Rome, every significant individual, every decisive event, every institution and idea that built the greatest empire of antiquity, each with inline citations and direct links to trusted sources.

How to use this library. This is an encyclopaedia, not a study guide. Every page presents a full chronological narrative of Roman history or a complete reference directory of the people and events that made it. The traditional date for the founding of Rome is 753 BC; the Western Roman Empire fell in AD 476. Each fact is supported by in-text citations pointing to authoritative open sources — primarily the World History Encyclopedia, the Perseus and Loeb digital libraries, Livius, and museum & university resources — with direct, working URLs.

I. The Narrative Volumes

Continue through the eras in order for a continuous account of Roman history.

Vol. 1

The Founding & the Monarchy

Contents: The legends of Aeneas, Romulus and Remus; the seven kings of Rome; the Etruscan kings; the institutions of the early city; and the expulsion of Tarquin the Proud in 509 BC.

Open the Founding & Monarchy →
Vol. 2

The Early Republic & the Struggle of the Orders

Contents: The consuls and the Senate; the Twelve Tables; the Conflict of the Orders between patricians and plebeians; the tribunate; and the conquest of Italy (509–264 BC).

Open the Early Republic →
Vol. 3

The Punic Wars & the Conquest of the Mediterranean

Contents: Hannibal and the great wars with Carthage; the Macedonian wars; the conquest of Greece; and Rome's rise to Mediterranean supremacy (264–146 BC).

Open the Punic Wars & Conquest →
Vol. 4

The Late Republic & the Fall of the Republic

Contents: The Gracchi, Marius and Sulla; the slave wars and Spartacus; Pompey and Caesar; the crossing of the Rubicon; Caesar's dictatorship and assassination; Antony, Cleopatra and Octavian (133–27 BC).

Open the Late Republic →
Vol. 5

The Roman Empire — The Principate & the Pax Romana

Contents: Augustus and the founding of the empire; the Julio-Claudian and Flavian dynasties; the "Five Good Emperors"; the Antonines; and the height of Roman power and culture (27 BC–AD 180).

Open the Empire & Pax Romana →
Vol. 6

Crisis & Recovery — The Third Century & the Dominate

Contents: The Crisis of the Third Century; the soldier-emperors; Diocletian’s reforms and the Tetrarchy; and the reign of Constantine (AD 180–337).

Open Crisis & Recovery →
Vol. 7

The Late Empire & the Fall of Rome

Contents: The barbarian invasions; the division of the empire; the sack of Rome (410); the western provinces lost; and the fall of the last western emperor in AD 476 — and why Rome fell (AD 337–476).

Open the Late Empire & Fall →

II. The Reference Volumes

A–Z

Every Individual in Roman History

Contents: A complete directory of every significant Roman — kings, consuls, generals, reformers, orators, emperors, empresses, jurists, poets, historians, philosophers and early Christians — with dates, role and significance.

Browse Every Person →
Timeline

Every Major Event in Roman History

Contents: A chronological register of the decisive events — founding, wars, battles, treaties, reforms, assassinations, plagues and destructions — from 753 BC to the fall of Constantinople in 1453.

See Every Event →
Ideas

Roman Civilization, Law & Legacy

Contents: Roman law, government, engineering, architecture, roads, the Latin language, literature, religion, and the eternal legacy of Rome in the modern world.

Read the Legacy →

III. Sources & Method

This encyclopaedia is compiled from established scholarly and reference works. The primary online source is the World History Encyclopedia (worldhistory.org), reviewed for educational use by Oxford University and others, alongside the Perseus Digital Library (with the primary sources Livy, Tacitus, Suetonius, Plutarch, Caesar, Cicero and others), Livius, the British Museum, and the Metropolitan Museum of Art. Direct links to every cited page are given throughout the text.

Principal source portals

  1. World History Encyclopedia — Ancient Rome. https://www.worldhistory.org/Rome/
  2. Perseus Digital Library (Tufts) — https://www.perseus.tufts.edu/hopper/
  3. Livius — Articles on Ancient History. https://www.livius.org/
  4. The British Museumhttps://www.britishmuseum.org/collection
  5. The Metropolitan Museum of Arthttps://www.metmuseum.org/toah/
It was the duty of the Annals to record virtue and to confront evil words and deeds.— Tacitus, Annals III (trans., Perseus Digital Library)
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