IMPERIUM ROMANUM

The Index

Chronology

From the kings to the Arab conquests, in order.

Chronology 128

Traditional foundation of Rome traditional

753 BCE · Roman world

A conventional literary foundation date, not the archaeological beginning of settlement.

See also Romulus

Traditional expulsion of the kings traditional

509 BCE · Roman world

Republican origin narratives place the monarchy's end here; early chronology remains reconstructed.

See also Tarquinius Superbus

Traditional first plebeian secession traditional

494 BCE · Roman world

Later tradition associates withdrawal with creation of the plebeian tribunate.

See also Tribunes of the plebs

Twelve Tables traditional

451-450 BCE · Roman world

Traditional date for the early written legal collection, surviving through later quotations.

See also Twelve Tables

Gallic sack of Rome contested

390 or 387 BCE · Roman world

Chronological systems differ; the event became a powerful memory of vulnerability.

Licinio-Sextian legislation traditional

367 BCE · Roman world

Traditionally associated with access to the consulship and economic disputes; details of early legislation are debated.

First Samnite War traditional

343-341 BCE · Roman world

Conventional chronology of the opening Roman-Samnite war, with early narrative details contested.

See also Samnites

Latin War

340-338 BCE · Roman world

Rome defeated its Latin opponents and reorganized their relationships through differentiated settlements.

See also Latins

Second Samnite War

326-304 BCE · Roman world

Extended conflict including the Caudine disaster and eventual Roman recovery.

See also Caudine Forks

Appian road and aqueduct

312 BCE · Roman world

Appius Claudius's censorship is associated with major infrastructural initiatives.

See also Via Appia

Third Samnite War

298-290 BCE · Roman world

Coalition warfare culminated in Rome's advantage in central Italy.

See also Sentinum

Lex Hortensia

287 BCE · Roman world

Plebiscites became binding on all Roman citizens, conventionally concluding the Conflict of the Orders.

See also Concilium plebis

Pyrrhic War

280-275 BCE · Roman world

Pyrrhus's victories proved costly; Rome ultimately secured its position in southern Italy.

First Punic War

264-241 BCE · Roman world

Rome and Carthage fought chiefly over Sicily and maritime power.

See also First Punic War

Sicilian settlement

241 BCE · Roman world

Rome acquired its first major overseas territorial responsibility after Carthage's defeat; administrative development followed.

See also Sicilia

Sardinia and Corsica acquired

238-237 BCE · Roman world

Rome seized the islands during Carthage's postwar weakness, creating a new strategic grievance.

See also Sardinia et Corsica

First Illyrian War

229-228 BCE · Roman world

Roman intervention established new Adriatic relationships without instantly creating a later provincial system.

Second Punic War

218-201 BCE · Roman world

Hannibal's Italian campaign formed one theater of a wider war across Spain Sicily and Africa.

See also Hannibal

Cannae

216 BCE · Roman world

Hannibal's victory inflicted a severe Roman defeat, but did not determine the war's final outcome.

See also Cannae

Carthago Nova captured

209 BCE · Roman world

Scipio seized the Punic Iberian base, changing the strategic balance in Spain.

See also Scipio Africanus

Metaurus

207 BCE · Roman world

Hasdrubal's defeat prevented reinforcement of Hannibal in Italy.

See also Metaurus

Zama

202 BCE · Roman world

Scipio's victory preceded Carthage's peace settlement the next year.

See also Zama

Second Macedonian War

200-197 BCE · Roman world

Rome defeated Philip V; subsequent declarations of Greek freedom coexisted with growing intervention.

See also Cynoscephalae

War against Antiochus III

192-188 BCE · Roman world

Roman and allied victories led to the settlement at Apamea and major Seleucid territorial losses.

See also Magnesia

Third Macedonian War

171-168 BCE · Roman world

Perseus's defeat at Pydna ended the Antigonid monarchy.

See also Pydna

Third Punic War

149-146 BCE · Roman world

Rome besieged and destroyed Carthage, then reorganized African territory.

See also Carthage

Corinth destroyed

146 BCE · Roman world

The Achaean defeat accompanied tighter Roman domination in Greece, though provincial arrangements developed in stages.

Numantia falls and Tiberius Gracchus dies

133 BCE · Roman world

Iberian conquest and Roman agrarian conflict mark different fronts of the Republic's expansion and crisis.

Gaius Gracchus's reforms and death

123-121 BCE · Roman world

Tribunician legislation addressed courts grain citizenship and colonization amid violent political conflict.

Jugurthine War

112-105 BCE · Roman world

Rome's Numidian war exposed elite competition and brought Marius to prominence.

See also Jugurtha

Aquae Sextiae and Vercellae

102-101 BCE · Roman world

Roman victories ended the immediate Cimbrian-Teutonic threat.

See also Marius

The Cimbrian War Phase 1: Aquae Sextiae (102 BCE)
SlideNotebookLMThe Cimbrian War Phase 1: Aquae Sextiae (102 BCE) from Gaius Marius: An Operational History

Social War

91-88 BCE · Roman world

Italian allies fought Rome; citizenship legislation transformed Italy's relationship with the Roman state.

See also Roman citizenship

Mithridatic wars

88-63 BCE · Roman world

Three wars and changing alliances expanded Roman power in Anatolia and the eastern Mediterranean.

Sulla marches on Rome

88 BCE · Roman world

A dispute over eastern command escalated into military seizure of the city.

See also Sulla

Sullan reconstruction and retirement contested

82-79 BCE · Roman world

Proscriptions constitutional reorganization and settlements attempted to remake Republican politics. The date of Sulla's abdication is disputed.

See also Proscription

Read further Vervaet: chronology of Sulla's dictatorship

Spartacus's revolt

73-71 BCE · Roman world

An escaped-gladiator rising expanded into a major servile war before suppression.

See also Spartacus

Pompey's eastern settlement and Catilinarian crisis

63 BCE · Roman world

Eastern reorganization and an internal conspiracy display the Republic's intertwined external and domestic pressures.

See also Pompey, Cicero

First Triumvirate arrangement

60 BCE · Roman world

Caesar Pompey and Crassus formed an informal political alliance, unlike the later legally constituted triumvirate.

Caesar's Gallic campaigns

58-50 BCE · Roman world

Conquest changed Gaul and supplied resources and military authority for Roman civil conflict.

See also Julius Caesar, Gauls

Carrhae

53 BCE · Roman world

Crassus's defeat by Parthian forces exposed the limits of Roman military power in the east.

See also Carrhae

Alesia

52 BCE · Roman world

Caesar defeated Vercingetorix after siege and relief operations; resistance in Gaul did not cease immediately.

See also Alesia

Rubicon and civil war

49 BCE · Roman world

Caesar crossed into Italy with troops, beginning war with Pompey's senatorial coalition.

Pharsalus

48 BCE · Roman world

Caesar defeated Pompey's main army; subsequent fighting continued elsewhere.

See also Pharsalus

African and Spanish civil-war campaigns

46-45 BCE · Roman world

Thapsus and Munda ended major resistance to Caesar without solving the political settlement.

See also Thapsus, Munda

The Battle of Munda: Caesar's Final Struggle, 45 BC
InfographicNotebookLMThe Battle of Munda: Caesar's Final Struggle, 45 BC

Caesar assassinated

44 BCE · Roman world

The Ides of March killing reopened rather than resolved struggles over command legitimacy and government.

See also Julius Caesar

Second Triumvirate

43 BCE · Roman world

Octavian Antony and Lepidus received extraordinary statutory powers; proscriptions accompanied their consolidation.

Philippi

42 BCE · Roman world

The triumvirs defeated Brutus and Cassius, ending the leading assassins' armed coalition.

Actium

31 BCE · Roman world

Octavian's forces defeated Antony and Cleopatra's fleet; the conquest of Egypt followed in 30 BCE.

See also Actium

Augustan settlement

27 BCE · Roman world

The Senate conferred Augustus's title; a conventional beginning of the Principate within an already extensive Roman empire.

See also Augustus

Further Augustan powers

23 BCE · Roman world

Adjustments to command and tribunician authority stabilized imperial precedence without one fully codified constitution.

See also Tribunician power

Varus disaster

9 CE · Roman world

Three legions were destroyed in Germanic conflict; Roman strategy east of the Rhine was reassessed.

See also Teutoburg Forest

Augustus dies

14 CE · Roman world

Tiberius's accession demonstrated succession beyond the Principate's founder.

See also Tiberius

Invasion of Britain

43 CE · Roman world

Claudius's armies began sustained provincial conquest, distinct from Caesar's earlier expeditions.

See also Britannia

Boudican revolt

60-61 CE · Roman world

A major uprising destroyed several British urban centers before Roman victory.

See also Boudica

Great Fire of Rome

64 CE · Roman world

Disaster and reconstruction intersected with Nero's political image and the earliest Roman persecution traditions.

See also Nero

First Jewish revolt

66-73/74 CE · Roman world

War culminated in Jerusalem's fall in 70 and continued resistance elsewhere.

See also Jerusalem

Succession and civil war

68-69 CE · Roman world

Nero's fall led through Galba Otho and Vitellius to Vespasian's victory.

See also Year of the Four Emperors

Vesuvius eruption contested

79 CE · Roman world

Pompeii Herculaneum and neighboring settlements were devastated; the precise calendar date is debated.

See also Pompeii, Herculaneum

Nerva and Trajan's succession

96-98 CE · Roman world

Adoption joined senatorial compromise to military authority after Domitian's assassination.

See also Nerva, Trajan

Adoption as a Survival Mechanism
SlideNotebookLMAdoption as a Survival Mechanism from Marble and Mud The Roman Rebrand

Dacian wars

101-102 and 105-106 CE · Roman world

Trajan defeated Decebalus; provincial organization followed conquest.

See also Dacia, Decebalus

Arabia annexed

106 CE · Roman world

The Nabataean kingdom entered Roman provincial government, with changing local economic and military relationships.

See also Arabia Petraea

Trajan's Parthian campaign

113-117 CE · Roman world

Eastern conquest and short-lived annexations were followed by revolt and Hadrianic withdrawal.

See also Trajan, Parthians

Hadrian's Wall

122 CE onward · Roman world

A monumental frontier system developed in northern Britain, with garrisons roads settlements and controlled crossings.

Bar Kokhba revolt

132-135/136 CE · Roman world

A major Judean uprising was suppressed with severe demographic and institutional consequences.

Marcomannic wars

166/167-180 CE · Roman world

Repeated Danubian conflicts tested Marcus Aurelius's government and military resources.

See also Marcomanni, Marcus Aurelius

Imperial civil-war crisis

193 CE · Roman world

Commodus's murder led to rapid rulers and rival armies before Severan consolidation.

See also Septimius Severus

Citizenship grant

212 CE · Roman world

Caracalla extended citizenship to most free imperial inhabitants, without abolishing legal and social inequalities.

See also Constitutio Antoniniana

Sasanian ascendancy

224-226 CE · Roman world

Ardashir's victories displaced Arsacid rule, establishing Rome's major eastern rival for the next four centuries.

See also Sasanians

Third-century imperial crisis

235-284 CE · Roman world

Frequent military succession invasion epidemic and regional regimes combined with persistent local institutional continuity.

See also Gallienus, Aurelian

Six-emperor year

238 CE · Roman world

Maximinus the Gordians Pupienus Balbinus and Gordian III illustrate unstable succession and competing constituencies.

See also Gordian III

Decian religious measures and Gothic war

249-251 CE · Roman world

Sacrificial certification and frontier conflict culminated in Decius's death at Abritus.

See also Decius

Valerian captured and regional regimes expand

260 CE · Roman world

Persian victory and imperial fragmentation produced opportunities for Gallic and Palmyrene power.

See also Valerian, Postumus, Palmyra

Aurelian's reunification

270-275 CE · Roman world

Palmyrene and Gallic regimes were defeated while Rome received major fortifications.

See also Aurelian

Diocletian's reign

284-305 CE · Roman world

Administrative fiscal military and succession arrangements evolved into the tetrarchic order.

See also Diocletian

First Tetrarchy established

293 CE · Roman world

Two Augusti were joined by two Caesars in an attempt to manage command and succession.

See also Tetrarchy

Price edict

301 CE · Roman world

The imperial price and wage ceilings survive epigraphically but do not prove uniform real-market enforcement.

See also Edict on Maximum Prices

Diocletian and Maximian abdicate

305 CE · Roman world

Planned succession soon collided with dynastic acclamations and rival imperial claims.

See also Constantius I Chlorus, Galerius

Milvian Bridge

312 CE · Roman world

Constantine defeated Maxentius and secured Italy; subsequent Christian patronage reshaped imperial religious politics.

See also Constantine I

Milan agreement and religious restitution

313 CE · Roman world

Constantine and Licinius's settlement supported toleration and restoration of Christian property; not the first or only toleration measure.

See also Licinius

Read further Lactantius On the Deaths of the Persecutors

Constantine defeats Licinius

324 CE · Roman world

Civil war ended with a single senior emperor controlling the Roman world.

See also Chrysopolis

Constantinople dedicated

330 CE · Roman world

The refounded city became a great imperial center, without instantly emptying Rome or creating an entirely new people.

See also Constantinople

Constantine dies

337 CE · Roman world

Dynastic succession divided responsibilities among his sons and was accompanied by violence.

See also Constantius II

Argentoratum

357 CE · Roman world

Julian's victory in Gaul strengthened his military reputation and political position.

See also Julian

Persian expedition and treaty

363 CE · Roman world

Julian died on campaign; Jovian surrendered Nisibis and other positions to secure withdrawal.

See also Julian, Jovian, Nisibis

Gothic crossing of the Danube

376 CE · Roman world

Admission of displaced groups was followed by exploitation mistrust and revolt in Roman territory.

See also Goths, Danube

Adrianople

378 CE · Roman world

Valens's defeat and death transformed eastern military and political conditions without ending the empire.

See also Adrianople

Nicene policy and Constantinople council

380-381 CE · Roman world

Imperial legislation and episcopal decisions strengthened a particular Christian settlement while dissent and local diversity persisted.

See also Theodosius I

Gothic settlement contested

382 CE · Roman world

Agreement placed Gothic groups within imperial territory; exact terms and later constitutional readings remain disputed.

See also Goths

Frigidus and Theodosius's death

394-395 CE · Roman world

Theodosius defeated Eugenius; separate eastern and western courts continued under his sons.

See also Frigidus, Arcadius, Honorius

The Frigidus Day 02
SlideNotebookLMThe Frigidus Day 02 from Theodosius Last Iron Wall

Rhine crossing contested

406 CE, conventional date · Roman world

Vandal Alan and Suevic groups entered Gaul; the exact chronology and narrative reconstruction have been debated.

See also Vandals, Alans, Suebi

Alaric sacks Rome

410 CE · Roman world

A major symbolic and material shock within continuing western government, not the destruction of all Roman civilization.

See also Alaric, Rome

Visigothic settlement in Gaul contested

418 CE · Roman world

The settlement created a durable regional power within changing imperial arrangements; mechanisms and fiscal implications are debated.

See also Visigoths

Vandal advance in Africa

429-439 CE · Roman world

Gaiseric's forces crossed into Africa and captured Carthage, removing a major western revenue and supply region.

See also Gaiseric, Carthage

Theodosian Code

438 CE · Roman world

Compilation of imperial constitutions supplied a legal archive while preserving differing dates and contexts.

Catalaunian Plains and Chalcedon

451 CE · Roman world

Hunnic war in Gaul and a major church council in the east were contemporaneous but distinct historical processes.

See also Attila, Chalcedon

Vandal sack of Rome

455 CE · Roman world

Gaiseric's forces plundered the city amid another western succession crisis.

See also Gaiseric, Petronius Maximus

Failed African expedition

468 CE · Roman world

A joint imperial attempt to defeat the Vandals ended disastrously near Cape Bon.

See also Anthemius, Leo I, Basiliscus

Romulus deposed

476 CE · Roman world

Odoacer removed the Italian emperor while Julius Nepos retained a recognized western claim until 480.

See also Romulus Augustulus, Julius Nepos

Theodoric defeats Odoacer

493 CE · Roman world

Ostrogothic royal rule in Italy preserved and redirected many Roman institutions under a new ruling arrangement.

See also Theodoric, Ravenna

Anastasian fiscal and currency changes

498 CE · Roman world

Abolition of the chrysargyron and copper-coin reform illustrate active eastern administrative adaptation.

See also Anastasius I

Anastasian Persian war

502-506 CE · Roman world

Sieges and negotiations preceded the strengthening of Dara as a frontier position.

See also Amida

Justinianic reign

527-565 CE · Roman world

Legal codification major construction reconquests religious policy and plague intersected in a heavily committed imperial state.

See also Justinian I

Justinianic legal codification

529-534 CE · Roman world

Successive Code editions Digest and Institutes assembled and revised legal traditions; later Novels continued legislation.

See also Corpus iuris civilis

Nika revolt and Eternal Peace

532 CE · Roman world

Violence at Constantinople and a Persian settlement created the setting for Justinian's subsequent western wars.

The Enemy Within the Nika Revolt (532 AD)
SlideNotebookLMThe Enemy Within the Nika Revolt (532 AD) from Rome Persia War and Ruin

Vandal kingdom conquered

533-534 CE · Roman world

Belisarius's expedition restored imperial government in Africa, followed by difficult military consolidation.

See also Ad Decimum, Tricamarum

Gothic War in Italy

535-554 CE · Roman world

Successive campaigns under Belisarius and Narses ended Ostrogothic rule but devastated many Italian communities.

See also Narses

Justinianic plague contested

541 CE onward · Roman world

An epidemic first securely described in Justinian's reign recurred; its overall mortality and economic effects remain actively debated.

Lombard advance in Italy

568 CE onward · Roman world

New kingdoms and duchies fragmented imperial control, while eastern Roman territories persisted in parts of Italy.

See also Lombards, Exarchate

Read further DIR Phocas essay

Renewed Persian war

572-591 CE · Roman world

Long conflict ended with Maurice supporting Khosrow II and obtaining a favorable settlement.

See also Maurice, Khosrow II

Read further DIR Phocas essay

Final great Roman-Persian war

602-628 CE · Roman world

Phocas's coup was followed by Sasanian conquests and Heraclius's counteroffensives, exhausting both powers.

See also Heraclius, Khosrow II

Read further DIR Phocas essay

Jerusalem captured by Persia

614 CE · Roman world

Sasanian occupation disrupted a major Christian center; the Cross's later recovery became an imperial religious symbol.

See also Jerusalem, Heraclius

Read further DIR: Heraclius

Siege of Constantinople

626 CE · Roman world

Avar-Slav attack and Persian pressure failed to take the capital, while imperial campaigning continued elsewhere.

See also Avars, Constantinople

Read further DIR: Heraclius

Heraclian victory and Persian political collapse

627-628 CE · Roman world

Campaigns including Nineveh preceded Khosrow II's overthrow and restoration of occupied territories.

See also Nineveh, Heraclius

Read further DIR: Heraclius

Yarmouk

636 CE · Roman world

Arab Muslim victory accelerated the loss of Roman Syria; it formed part of a wider sequence of conquest.

See also Yarmouk, Syria

Read further DIR: Heraclius

Conquest of Egypt

639-642 CE · Roman world

Arab armies displaced eastern Roman government from Egypt, transforming the eastern Mediterranean's fiscal and strategic balance.

See also Alexandria, Aegyptus

Read further DIR: Heraclius

Heraclius dies

641 CE · Roman world

A contested dynastic transition brought Constantine III Heraclonas and ultimately Constans II to power.

See also Constans II

Read further DIR: Heraclius

Arab siege defeated

717-718 CE · Roman world

Constantinople survived a major siege during Leo III's accession and consolidation.

See also Leo III

Images restored and controversy ended

787 and 843 CE · Roman world

Nicaea II and the later restoration of icons mark different stages in the iconoclast controversies.

See also Irene, Iconoclasm

Macedonian dynasty begins

867 CE · Roman world

Basil I's accession opened a long dynastic period with military co-emperors and changing frontiers.

See also Basil II

Bulgarian resistance overcome

1018 CE · Roman world

Basil II's campaigns brought Bulgaria under imperial government; later national narratives frame the conflict differently.

See also Basil II, Bulgars

Manzikert

1071 CE · Roman world

Romanos IV's defeat was followed by political crisis and gradual territorial transformations, not instantaneous loss of all Anatolia.

See also Manzikert

Komnenian restoration begins

1081 CE · Roman world

Alexios I seized the throne and rebuilt military fiscal and dynastic resources.

See also Alexios I Komnenos

Fourth Crusade captures Constantinople

1204 CE · Roman world

Latin rule and multiple Greek successor states divided former imperial territory.

See also Nicaea, Trebizond

Constantinople recovered

1261 CE · Roman world

Nicaean forces restored the city to Greek imperial rule under Michael VIII, without restoring the old empire's full extent.

See also Michael VIII Palaiologos

Ottoman conquest of Constantinople

1453 CE · Roman world

Constantine XI died during the city's fall; Morea and Trebizond survived briefly as separate successor territories.

See also Constantine XI Palaiologos, Ottomans