Here is a large set of (subject, predicate, object) triples covering the Roman Empire across many domains. This is necessarily selective but aims to be comprehensive:

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## FOUNDING & CHRONOLOGY

- (Roman Empire, succeeded, Roman Republic)
- (Roman Empire, began, 27 BC)
- (Roman Empire, ended in west, 476 AD)
- (Roman Empire, ended in east, 1453 AD)
- (Augustus, founded, Roman Empire)
- (Battle of Actium, occurred in, 31 BC)
- (Battle of Actium, defeated, Mark Antony and Cleopatra)
- (Augustus, defeated, Mark Antony)
- (Roman Republic, transformed into, Roman Empire)
- (Western Roman Empire, fell to, Odoacer)
- (Odoacer, deposed, Romulus Augustulus)
- (Eastern Roman Empire, is also called, Byzantine Empire)
- (Constantinople, fell to, Ottoman Turks)
- (Ottoman Turks, conquered Constantinople in, 1453 AD)

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## GEOGRAPHY

- (Roman Empire, covered, approximately 5 million square kilometers at peak)
- (Roman Empire, bordered, Rhine River to the north)
- (Roman Empire, bordered, Danube River to the north)
- (Roman Empire, bordered, Sahara Desert to the south)
- (Roman Empire, bordered, Euphrates River to the east)
- (Roman Empire, included, Britain)
- (Roman Empire, included, Gaul)
- (Roman Empire, included, Hispania)
- (Roman Empire, included, North Africa)
- (Roman Empire, included, Egypt)
- (Roman Empire, included, Asia Minor)
- (Roman Empire, included, Greece)
- (Roman Empire, included, Syria)
- (Roman Empire, included, Mesopotamia at times)
- (Roman Empire, included, Dacia)
- (Roman Empire, included, Italy)
- (Roman Empire, included, the Balkans)
- (Rome, served as, capital of Roman Empire)
- (Constantinople, became, capital of Eastern Roman Empire)
- (Constantinople, founded by, Constantine I)
- (Constantinople, founded in, 330 AD)
- (Hadrian's Wall, built across, northern Britain)
- (Hadrian's Wall, built by, Emperor Hadrian)
- (Limes, referred to, Roman frontier fortifications)

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## EMPERORS

- (Augustus, reigned, 27 BC – 14 AD)
- (Augustus, was, first Roman Emperor)
- (Augustus, born as, Gaius Octavius)
- (Augustus, adopted by, Julius Caesar)
- (Tiberius, reigned, 14–37 AD)
- (Caligula, reigned, 37–41 AD)
- (Caligula, assassinated by, Praetorian Guard)
- (Claudius, reigned, 41–54 AD)
- (Claudius, conquered, Britain)
- (Nero, reigned, 54–68 AD)
- (Nero, persecuted, Christians)
- (Nero, blamed Christians for, Great Fire of Rome)
- (Great Fire of Rome, occurred in, 64 AD)
- (Year of the Four Emperors, occurred in, 69 AD)
- (Vespasian, founded, Flavian dynasty)
- (Vespasian, reigned, 69–79 AD)
- (Titus, reigned, 79–81 AD)
- (Titus, destroyed, Jerusalem)
- (Jerusalem, destroyed in, 70 AD)
- (Domitian, reigned, 81–96 AD)
- (Domitian, assassinated by, conspirators)
- (Nerva, reigned, 96–98 AD)
- (Nerva, began, Five Good Emperors period)
- (Trajan, reigned, 98–117 AD)
- (Trajan, expanded empire to, greatest extent)
- (Trajan, conquered, Dacia)
- (Trajan, fought, Dacian Wars)
- (Hadrian, reigned, 117–138 AD)
- (Hadrian, built, Hadrian's Wall)
- (Hadrian, consolidated, empire borders)
- (Antoninus Pius, reigned, 138–161 AD)
- (Marcus Aurelius, reigned, 161–180 AD)
- (Marcus Aurelius, wrote, Meditations)
- (Marcus Aurelius, was, Stoic philosopher)
- (Marcus Aurelius, fought, Germanic tribes)
- (Commodus, reigned, 180–192 AD)
- (Commodus, assassinated by, conspirators)
- (Septimius Severus, founded, Severan dynasty)
- (Septimius Severus, reigned, 193–211 AD)
- (Caracalla, reigned, 211–217 AD)
- (Caracalla, issued, Edict of Caracalla)
- (Edict of Caracalla, granted citizenship to, all free inhabitants of empire)
- (Crisis of the Third Century, lasted, 235–284 AD)
- (Crisis of the Third Century, involved, frequent emperor changes)
- (Diocletian, reigned, 284–305 AD)
- (Diocletian, created, Tetrarchy)
- (Tetrarchy, divided empire among, four rulers)
- (Diocletian, persecuted, Christians)
- (Constantine I, reigned, 306–337 AD)
- (Constantine I, converted to, Christianity)
- (Constantine I, issued, Edict of Milan)
- (Edict of Milan, granted, religious tolerance)
- (Constantine I, convened, Council of Nicaea)
- (Council of Nicaea, occurred in, 325 AD)
- (Julian, reigned, 361–363 AD)
- (Julian, tried to restore, paganism)
- (Julian, called, the Apostate)
- (Theodosius I, reigned, 379–395 AD)
- (Theodosius I, made Christianity, official state religion)
- (Theodosius I, divided empire into, Western and Eastern halves)
- (Romulus Augustulus, was, last Western Roman Emperor)
- (Romulus Augustulus, deposed in, 476 AD)

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## GOVERNMENT & POLITICS

- (Roman Emperor, held title, Princeps)
- (Roman Emperor, held title, Augustus)
- (Roman Emperor, held title, Caesar)
- (Roman Senate, continued to exist under, Roman Empire)
- (Roman Senate, had reduced power under, emperors)
- (Praetorian Guard, served as, imperial bodyguard)
- (Praetorian Guard, wielded significant political power)
- (Praetorian Guard, assassinated several, emperors)
- (Roman Empire, divided into, provinces)
- (Provinces, governed by, governors)
- (Governors, appointed by, emperor or Senate)
- (Roman law, codified in, Corpus Juris Civilis)
- (Corpus Juris Civilis, compiled under, Justinian I)
- (Roman law, influenced, modern legal systems)
- (Pontifex Maximus, was, chief priest title held by emperors)
- (Pater Patriae, meant, Father of the Fatherland)
- (Imperator, originally meant, victorious general)
- (Tribune of the Plebs, power granted emperors, veto authority)

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## MILITARY

- (Roman Legion, was, primary military unit)
- (Roman Legion, consisted of approximately, 5,000 soldiers)
- (Roman Legion, subdivided into, cohorts)
- (Cohort, subdivided into, centuries)
- (Century, commanded by, centurion)
- (Legionary, was, Roman citizen soldier)
- (Auxiliary troops, recruited from, non-citizens)
- (Roman army, used, testudo formation)
- (Roman army, built, siege engines)
- (Roman army, used, ballista)
- (Roman army, used, catapult)
- (Roman soldier, carried, pilum)
- (Roman soldier, carried, gladius)
- (Roman soldier, used, scutum)
- (Roman army, built, military camps called castra)
- (Roman military, built, roads for troop movement)
- (Roman navy, called, Classis)
- (Roman navy, patrolled, Mediterranean Sea)
- (Germanic tribes, defeated Romans at, Battle of Teutoburg Forest)
- (Battle of Teutoburg Forest, occurred in, 9 AD)
- (Battle of Teutoburg Forest, destroyed, three Roman legions)
- (Roman army, defeated Carthage in, Punic Wars)
- (Roman army, fought, Jewish revolts)
- (Roman army, suppressed, Bar Kokhba revolt)

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## ECONOMY

- (Roman Empire, had, large trade network)
- (Roman Empire, traded with, India)
- (Roman Empire, traded with, China)
- (Roman Empire, traded via, Silk Road)
- (Roman Empire, used, denarius as currency)
- (Denarius, suffered, debasement over time)
- (Roman economy, relied heavily on, slave labor)
- (Slaves, comprised, significant portion of population)
- (Roman Empire, exported, olive oil)
- (Roman Empire, exported, wine)
- (Roman Empire, exported, grain)
- (Egypt, supplied, large amounts of grain to Rome)
- (Roman Empire, had, extensive road network)
- (Roman road network, spanned, over 400,000 km)
- (Roman roads, facilitated, trade and military movement)
- (Roman Empire, used, aqueducts for water supply)
- (Roman agriculture, used, crop rotation)
- (Roman Empire, collected, taxes from provinces)
- (Tax farming, used to, collect provincial taxes)
- (Roman Empire, had, large markets called fora)

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## SOCIETY & CULTURE

- (Roman society, divided into, patricians and plebeians)
- (Roman society, included, slaves)
- (Roman citizenship, conferred, legal rights)
- (Edict of Caracalla, extended citizenship to, all free men)
- (Roman family, headed by, paterfamilias)
- (Paterfamilias, had, legal authority over family)
- (Roman women, had limited, political rights)
- (Roman women, could own, property)
- (Roman education, emphasized, rhetoric and philosophy)
- (Roman gladiatorial games, held in, amphitheaters)
- (Colosseum, located in, Rome)
- (Colosseum, completed in, 80 AD)
- (Colosseum, held, gladiatorial combat)
- (Colosseum, held, animal hunts called venationes)
- (Roman games, called, ludi)
- (Chariot racing, held in, Circus Maximus)
- (Circus Maximus, located in, Rome)
- (Roman baths, called, thermae)
- (Thermae, served as, social gathering places)
- (Roman diet, included, garum fish sauce)
- (Roman diet, stapled on, bread and olive oil)
- (Roman dress, included, toga)
- (Toga, worn by, Roman male citizens)
- (Roman architecture, used, concrete called opus caementicium)
- (Roman architecture, featured, arches and vaults)
- (Roman architecture, featured, domes)
- (Pantheon, built in, Rome)
- (Pantheon, features, large concrete dome)
- (Roman Empire, spread, Latin language)
- (Latin, evolved into, Romance languages)
- (Romance languages, include, French, Spanish, Portuguese, Italian, Romanian)
- (Roman theater, performed, plays of Plautus and Terence)
- (Roman religion, was, polytheistic)
- (Roman gods, included, Jupiter)
- (Roman gods, included, Juno)
- (Roman gods, included, Mars)
- (Roman gods, included, Venus)
- (Roman gods, included, Mercury)
- (Roman gods, included, Minerva)
- (Roman religion, adopted many, Greek gods)
- (Emperor worship, practiced as, imperial cult)
- (Roman calendar, reformed by, Julius Caesar)
- (Julian calendar, replaced by, Gregorian calendar)

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## RELIGION

- (Roman Empire, initially persecuted, Christians)
- (Christians, persecuted under, Nero)
- (Christians, persecuted under, Diocletian)
- (Constantine I, legalized, Christianity)
- (Theodosius I, banned, pagan worship)
- (Christianity, became state religion in, 380 AD)
- (Edict of Thessalonica, issued by, Theodosius I)
- (Edict of Thessalonica, established, Nicene Christianity as state religion)
- (Roman Empire, tolerated, Judaism)
- (Roman Empire, spread, Christianity throughout Europe)
- (Mithraism, popular among, Roman soldiers)
- (Mystery religions, flourished in, Roman Empire)
- (Roman Pontiff, evolved from, Roman religious traditions)

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## INFRASTRUCTURE

- (Roman Empire, built, extensive road network)
- (Roman roads, built using, layered stone construction)
- (Roman aqueducts, carried, fresh water to cities)
- (Aqua Appia, was, first Roman aqueduct)
- (Roman aqueducts, used, gravity flow)
- (Roman sewers, called, Cloaca Maxima)
- (Cloaca Maxima, drained, city of Rome)
- (Roman bridges, used, arch construction)
- (Roman harbors, facilitated, maritime trade)
- (Ostia, served as, port city of Rome)
- (Roman postal system, called, Cursus Publicus)
- (Cursus Publicus, facilitated, official communication)

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## FALL OF THE WESTERN EMPIRE

- (Western Roman Empire, weakened by, Germanic invasions)
- (Visigoths, sacked Rome in, 410 AD)
- (Vandals, sacked Rome in, 455 AD)
- (Attila, led, Huns)
- (Huns, invaded, Roman Empire)
- (Attila, died in, 453 AD)
- (Germanic tribes, included, Visigoths)
- (Germanic tribes, included, Ostrogoths)
- (Germanic tribes, included, Vandals)
- (Germanic tribes, included, Franks)
- (Germanic tribes, included, Angles and Saxons)
- (Western Roman Empire, suffered, economic decline)
- (Western Roman Empire, suffered, political instability)
- (Western Roman Empire, suffered, military overextension)
- (Western Roman Empire, suffered, plague)
- (Antonine Plague, struck empire in, 165–180 AD)
- (Plague of Cyprian, struck empire in, 249–262 AD)
- (Western Roman Empire, lost, tax revenue over time)
- (Roman army, increasingly relied on, Germanic mercenaries)
- (Foederati, were, Germanic soldiers serving Rome)
- (Odoacer, was, Germanic leader who deposed Romulus Augustulus)

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## NOTABLE FIGURES (NON-EMPERORS)

- (Virgil, wrote, Aeneid)
- (Virgil, lived during, reign of Augustus)
- (Ovid, wrote, Metamorphoses)
- (Livy, wrote, Ab Urbe Condita)
- (Tacitus, wrote, Annals)
- (Tacitus, wrote, Histories)
- (Pliny the Elder, wrote, Natural History)
- (Pliny the Elder, died in, eruption of Vesuvius)
- (Pliny the Younger, described, eruption of Vesuvius)
- (Juvenal, wrote, Satires)
- (Cicero, lived during, late Republic into Empire transition)
- (Seneca, was, advisor to Nero)
- (Seneca, was, Stoic philosopher)
- (Josephus, wrote, Jewish War)
- (Josephus, described, Roman siege of Jerusalem)
- (Galen, was, physician in Roman Empire)
- (Galen, served, Marcus Aurelius)
- (Vitruvius, wrote, De Architectura)
- (
