The Roman Empire: all roads lead to Rome
FoundationRome grew from a republic (509 BC) into an empire under Augustus (27 BC): about two centuries of Pax Romana left roads, law and Latin shaping us still. The empire split east–west in 395 and the west fell in 476, opening the medieval age.
- Republic 509 BC → Augustus 27 BC → Pax Romana c. 200 years
- Legacy: Roman law, Latin, roads and aqueducts, arch and concrete
- 313 Christianity legal → 395 split east–west → 476 west falls = medieval age begins
§Text Passage
1Legend says Rome was founded in 753 BC and ruled by kings at first; in 509 BC the Romans expelled their king and set up a republic, governed by the Senate and two consuls elected each year so that power would never rest with one man. The Twelve Tables (c. 451 BC) had the law carved on bronze tablets and displayed in public, so aristocrats could no longer bend it by word of mouth and the commons gained the protection of written law.
2Through three Punic Wars Rome defeated the merchant power Carthage — Hannibal once crossed the Alps with war elephants into Italy — and by the 2nd century BC it controlled the whole Mediterranean, proudly calling it Mare Nostrum, 'our sea'. In 27 BC Octavian received the title Augustus from the Senate: a republic in name, an emperor in fact, and some 200 years of prosperity known as the Pax Romana followed.
3The empire was held together by law, legions and engineering: about 80,000 km of paved roads, beginning with the Via Appia in 312 BC; eleven aqueducts watering the capital; the Colosseum opened in AD 80; and the concrete dome of the Pantheon, 43.3 m across, still the largest unreinforced concrete dome in the world. Roman law protected property and contracts and became the ancestor of the continental legal systems, while 'all roads lead to Rome' tells how the roads moved armies, post and trade.
4The empire had grown too big to rule: in 313 Constantine legalised Christianity, in 330 he moved the capital to Constantinople, and in 395 the empire formally split into east and west. In 476 the Germanic commander Odoacer deposed the last western emperor, a date historians traditionally treat as the boundary between ancient and medieval times; the eastern half, centred on Constantinople, endured nearly another thousand years, preserving Rome's law, religion and institutions.
1Summary 重點摘要
Rome grew from a republic (509 BC) into an empire under Augustus (27 BC): about two centuries of Pax Romana left roads, law and Latin shaping us still. The empire split east–west in 395 and the west fell in 476, opening the medieval age.
2Vocabulary cards Vocabulary
Ruled from 509 BC by the Senate and consuls, with no king; it became an empire when Octavian became Augustus in 27 BC.
c. 27 BC–AD 180, when the empire enjoyed internal calm and flourishing trade — Rome at its height.
From the Twelve Tables (c. 451 BC) to the law of nations — evidence and due process — the root of today's civil-law systems.
Elevated channels of arches carrying spring water into cities for baths and fountains — the signature of Roman engineering.
Rome's language, ancestor of French, Spanish, Italian and more; used for scholarship and law into modern times.
The title ('the revered one') given to Octavian in 27 BC — the first Roman emperor.
The basic unit of Rome's army — several thousand heavy infantry — disciplined and superb at engineering, the tool of Rome's conquests.
Rome's written law of c. 451 BC, displayed publicly on twelve bronze tablets, so aristocrats could no longer bend the law by word of mouth.
3Step by step Steps
- 753–509 BC: kingdom to republicLegend says Rome was founded in 753 BC; in 509 BC the Romans expelled their king for a republic run by the Senate and two consuls. The Twelve Tables (c. 451 BC) wrote the law down publicly, so aristocrats could no longer bend it by word of mouth.
- Expansion: 'our sea'Through three Punic Wars against Carthage (Hannibal once crossed the Alps with war elephants) and eastern campaigns, by the 2nd century BC Rome ruled the whole Mediterranean — Mare Nostrum, 'our sea'.
- 27 BC: the empire beginsAfter Caesar's murder in 44 BC his heir Octavian defeated all rivals and in 27 BC took the title Augustus — nominally restoring the republic, in fact its first emperor. Then came some 200 years of Pax Romana: roads everywhere ('all roads lead to Rome'), aqueducts into the cities, the Colosseum opened in AD 80.
- 4th century AD: the great turnThe empire had grown too big to rule: in 313 Constantine's Edict of Milan legalised Christianity, in 330 he moved the capital to Constantinople, in 380 Theodosius I made Christianity the state religion, and in 395, at his death, the empire formally split east and west.
- AD 476: the west fallsThe Germanic commander Odoacer deposed Romulus Augustulus, the last western emperor — traditionally the boundary between ancient and medieval history. The eastern half (Byzantium) endured nearly another thousand years.
- Engineering legacy: roads, aqueducts and concreteUsing volcanic-ash concrete and arches, the Romans built some 80,000 km of paved roads, starting with the Via Appia (begun 312 BC) running to southern Italy; eleven aqueducts watered the capital, and the Pantheon (rebuilt c. AD 126) still holds the world's largest unreinforced concrete dome, 43.3 m across.
4Diagrams Diagrams
5Worked example Example
Example: how did a town on the Tiber become mistress of the Mediterranean? Analyse along four lines: institutions, military power, transport and the economy.
- Institutions: the Senate gave stable decisions; granting citizenship to some conquered peoples made rule acceptable, and allied cities were willing to supply troops and grain.
- Military: the legions were disciplined and superb engineers — sieges, bridges, fortified camps — a clear logistical edge in long wars.
- Transport: roads plus Mediterranean shipping moved soldiers and grain fast, so commands still reached every corner of a huge realm.
- Economy: plunder and slaves poured in, but estates worked by cheap labour squeezed small farmers, deepening inequality and planting the seeds of civil war.
- Result: by the 2nd century BC Rome had no rival in the Mediterranean, yet an empire overloaded the republic, which failed and gave way to imperial rule.
- Answer: Rome rose on institutions, army and transport working together: stable decisions and the citizenship policy secured loyalty, disciplined legions with outstanding engineering skill won the wars, and roads plus sea lanes kept command effective and movement swift. But over-expansion unbalanced wealth and broke the republic, and power passed to emperors. Answer in layers (institutions / military / transport / economy) — and note the new problems that success itself created.
6Common mistakes Mistakes
7Quick check Quick check
Q1When was the Roman Republic founded, and what did the Twelve Tables achieve?
Q2What period does Pax Romana cover, and what were its features?
Q3When did the Western Roman Empire fall, and why does the date matter?
Q4Which state fought Rome in the three Punic Wars, and which general crossed the Alps with war elephants?
Q5Which modern languages descended from Latin?
8Recap Recap
- Republic 509 BC → Augustus 27 BC → Pax Romana c. 200 years
- Legacy: Roman law, Latin, roads and aqueducts, arch and concrete
- 313 Christianity legal → 395 split east–west → 476 west falls = medieval age begins
- Three Punic Wars defeated Carthage → by the 2nd century BC the Mediterranean was 'our sea'
- Caesar was not the first emperor; the eastern half (Byzantium) lasted until 1453