06 The Roman World
Explore how Roman political institutions, expansion, imperial rule, and Mediterranean connections shaped a diverse and unequal world.
From republic to empire
Roman history is often divided into the , traditionally dated from 509 to 27 BCE, and the Roman Empire, which began under in 27 BCE. These dates are useful markers of political change, not abrupt breaks in Roman society.
Republican government and society
The Republic replaced kingship with a system that divided public authority among elected officials, the , and citizen assemblies. Two consuls led the state and commanded armies for one-year terms, and each could check the other. Other magistrates managed functions such as justice, finances, and public works. Assemblies of Roman citizens elected officials and voted on laws, although voting arrangements favored wealthier citizens.
could protect plebeians from certain actions by magistrates and veto measures. The , made up largely of elite former officeholders, advised magistrates and exercised substantial influence over policy, finance, and diplomacy.
This system was not a modern democracy. Women, enslaved people, and noncitizens had no vote, and political influence was unequal. Over centuries of conflict between patricians, families claiming inherited elite status, and plebeians, plebeians gained access to offices and political protections. By the late Republic, wealth and political connections often mattered more than the old patrician-plebeian distinction.
Roman society was organized around households, family ties, and social rank. The , the senior male head of a household, held broad authority in Roman law, though women’s circumstances varied with status, wealth, and period. Enslaved people worked in homes, farms, mines, workshops, and other settings. Some were freed, but manumission did not erase all social distinctions. brought legal and political privileges.
Expansion and republican crisis
Rome expanded across the Italian peninsula through warfare, alliances, and arrangements that gave different communities different rights. It extended citizenship and varying degrees of local self-government to communities across Italy and its territories. Roman victories in the against Carthage from 264 to 146 BCE helped make Rome the dominant power in the western Mediterranean. Further conquests brought Greece, parts of North Africa, and territories in Spain and western Asia under Roman rule. Conquered lands became , usually governed by Roman officials, while local communities often retained some institutions and customs.
Expansion brought land, wealth, enslaved labor, and military responsibilities, but its benefits were uneven. Political competition intensified as generals commanded armies loyal to them, and conflicts over citizenship, land, and power destabilized the Republic. Civil wars culminated in Julius Caesar’s dictatorship and assassination in 44 BCE. After further conflict, Octavian defeated his rivals and became .
Imperial authority and local life
In 27 BCE, established a political order later called the . He presented himself as princeps, or “first citizen,” and retained republican offices and language, but concentrated decisive authority in his own hands. Emperors commanded the army and controlled key . The and other institutions continued, though with reduced independence. This arrangement helped maintain stability while preserving some familiar forms of Roman government.
The empire was not uniform: did not all live alike. Roman officials collected taxes and maintained imperial rule, while cities and local elites often managed everyday affairs. Roman law, citizenship, military service, roads, and public building helped connect communities, but local languages, religious practices, and customs continued. In 212 CE, Emperor Caracalla extended to nearly all free inhabitants of the empire, broadening a status that had once been much more restricted.
Cultural and religious change
Roman culture combined traditions from across the empire. Romans adopted and adapted Greek literature, philosophy, art, and religious practices, while provincial communities also shaped Roman styles and institutions. Roman religion included worship of many gods and civic rituals. The spread of Christianity eventually transformed religious life: in 313 CE, emperors Constantine and Licinius established policies permitting Christian worship, and Christianity later became closely associated with imperial power.
Mediterranean trade and connections
The Mediterranean was the empire’s central corridor, linking ports, islands, river valleys, and inland roads. Rome’s control of extensive coastlines and the relative political stability of much of the imperial period supported the movement of people and goods. Piracy, war, weather, and distance nevertheless continued to pose risks. Roads and rivers helped move officials, soldiers, and merchandise; ships were generally more efficient for heavy and bulky cargo.
The city of Rome depended on large grain shipments, especially from Egypt and North Africa. Other common traded goods included olive oil, wine, pottery, metals, and textiles. carried products such as oil and wine. Mediterranean ports also connected Roman markets to longer-distance routes: merchants and intermediaries brought goods such as spices, silk, and precious materials through the Red Sea, Arabian Sea, and overland networks.
Trade moved more than commodities. Merchants, soldiers, migrants, and enslaved people carried languages, skills, ideas, and religious traditions across imperial boundaries.