How a small city on the Italian peninsula became a powerful republic and began its journey toward becoming one of the greatest empires of the ancient world

Long before Rome became the centre of a vast empire, it was a small settlement on the Italian peninsula surrounded by many other communities. There was nothing about the early settlement that guaranteed it would one day control territories stretching across Europe, North Africa and the Middle East. Rome's rise was the result of centuries of warfare, political change, alliances, economic development and adaptation. Its history began with a city, but the ambitions of its people eventually reached far beyond the hills on which that city was built.

The traditional foundation date of Rome is 753 BCE, although archaeological evidence shows that communities had lived in the area long before that date. Rome developed around the Tiber River in central Italy, a location that provided access to water, agriculture and trade routes. The city's position also gave it connections between the inland regions of Italy and the western coast.

The landscape around Rome contained several hills, and settlements gradually grew together into a larger community. The Tiber River could be crossed at an important point, making the area useful for movement and trade. Salt from coastal regions could also be transported inland along routes that passed through the region.

Early Rome existed in a world filled with different peoples and cultures. Latin-speaking communities lived across central Italy, while the Etruscans were an important civilization to the north. Greek colonies had been established in southern Italy, and Phoenician influence was strong in parts of the western Mediterranean.

Rome therefore developed through contact with other societies.

The early Romans were not isolated farmers who suddenly created a civilization by themselves. They adopted ideas, technologies, religious practices and political traditions from neighbouring peoples. Etruscan influence was particularly important during the early development of Rome.

According to Roman tradition, the city was originally ruled by kings. The traditional history describes seven kings, beginning with Romulus and ending with Tarquinius Superbus, often called Tarquin the Proud. Some details of these stories are legendary, and historians cannot treat every traditional account as literal history. However, the stories preserve Roman memories about the city's earliest political development.

Romulus, the legendary founder of Rome, became one of the central figures in Roman tradition. The famous story describes Romulus and his twin brother Remus as abandoned infants who were rescued and raised by a she-wolf. Romulus eventually killed Remus and became the founder and first king of Rome.

The story was important to later Romans because it gave the city a dramatic origin story. It connected Rome's identity to ideas of courage, conflict, destiny and military strength. Whether the events happened exactly as described is another question.

Archaeology provides a different picture.

Evidence suggests that settlements on Rome's hills gradually developed and became increasingly connected. The process of urbanization took place over generations. The city was not created in one single moment.

By the sixth century BCE, Rome had become an important settlement in central Italy. Etruscan influence was particularly significant during this period. Roman traditions later remembered the final kings as Etruscan or connected to Etruscan power.

The monarchy eventually ended.

According to Roman tradition, the last king, Tarquin the Proud, was expelled around 509 BCE. Rome then established a republic.

The Roman Republic was not a democracy in the modern sense. Political power was concentrated among citizens, and wealthy aristocratic families initially possessed enormous influence. Yet the republican system created institutions that allowed political power to be distributed among different offices and assemblies.

The word republic comes from the Latin expression res publica, meaning the public matter or public affair. The Roman political system was based on the idea that the state was not simply the personal possession of a king.

Instead of having a permanent monarch, Rome developed annually elected magistrates. Two consuls generally held the highest executive authority, although their power was limited by the fact that they served for a short period and could check one another.

Other offices developed as Rome expanded. Praetors handled judicial responsibilities, quaestors dealt with financial matters and aediles were responsible for aspects of public administration. The Senate became one of the most influential institutions in Roman political life.

The Senate was not originally a democratic assembly. It was dominated by aristocratic families and experienced political figures. Over time, however, Roman politics became more complex as different social groups struggled for greater influence.

One of the most important conflicts in early Roman history was the struggle between patricians and plebeians.

Patricians were members of Rome's traditional aristocratic families. Plebeians included a much broader section of the citizen population. The distinction was not simply about wealth, since plebeians could include people with considerable economic resources, but patricians initially enjoyed important political advantages.

Plebeians demanded greater political protection and representation.

According to Roman tradition, one major moment in this struggle occurred when plebeian citizens withdrew from the city and refused to participate in military service until their demands were addressed. This event became associated with the creation of the tribunes of the plebs.

Tribunes were representatives who could defend plebeian interests and eventually gained the power to veto certain decisions.

The conflict continued for generations.

Roman political institutions gradually became more inclusive among male citizens, although political power remained heavily influenced by wealthy families. The Twelve Tables, traditionally dated to the middle of the fifth century BCE, provided an important written expression of Roman law.

Writing laws down mattered because legal rules were no longer entirely dependent upon the private knowledge of a small group of officials. The Twelve Tables did not create equality, but they became an important part of Roman legal tradition.

Roman society remained deeply hierarchical.

At the top were wealthy families who controlled large amounts of land and political influence. Below them were smaller farmers, craftsmen, merchants and labourers. Enslaved people occupied a particularly vulnerable position and had no political rights.

Family structure was also important.

The Roman household was organized around the authority of the paterfamilias, the senior male head of the family. His authority could extend over family property and other members of the household, although the exact realities of family life varied across time and social class.

Religion was deeply connected to Roman public life.

Romans worshipped many gods, including Jupiter, Juno, Minerva, Mars, Venus and others. Religious rituals were performed not only in private households but also as part of public political life. Priests and magistrates carried out ceremonies intended to maintain good relations between the Roman community and the gods.

Roman religion was also highly adaptable.

As Rome expanded, it encountered many different religious traditions. Roman society often incorporated foreign gods and practices into its religious world. This ability to absorb outside traditions would become one of the recurring characteristics of Roman civilization.

Military service was another central part of Roman life.

Early Rome was surrounded by rival communities, and survival required military strength. Roman citizens were expected to serve in the army under certain circumstances. Military organization gradually became one of the foundations of Roman expansion.

Rome did not conquer Italy in one campaign.

Its expansion happened over generations.

Roman armies fought neighbouring Latin communities, Etruscan powers, Samnite peoples and Greek cities in southern Italy. Sometimes Rome fought directly. At other times it formed alliances and offered different levels of citizenship or political partnership.

This flexibility was extremely important.

Rome did not always treat defeated communities in the same way. Some peoples received Roman citizenship, either fully or with limitations. Others became allies and retained a degree of local independence while being required to provide military support.

The Roman system therefore created a network of relationships across Italy.

This network provided Rome with access to soldiers and resources. When Rome fought larger wars, it could draw upon manpower from allied communities across the peninsula.

One of the most important conflicts in the expansion of Rome was the series of wars against the Samnites.

The Samnites were powerful peoples living in the mountainous regions of central and southern Italy. Rome fought several wars against them between the fourth and early third centuries BCE. These conflicts were difficult and sometimes went badly for the Romans, but Rome eventually strengthened its position across central Italy.

Roman armies also fought Greek forces in southern Italy.

The Greek city of Tarentum sought assistance from King Pyrrhus of Epirus. Pyrrhus crossed into Italy with an army that included war elephants and defeated Roman forces in several battles.

His victories were costly, however.

The expression "Pyrrhic victory" comes from these wars because Pyrrhus reportedly suffered such heavy losses that further victories could threaten his ability to continue fighting. Rome eventually recovered and defeated the forces of Pyrrhus.

By the middle of the third century BCE, Rome had become the dominant power across most of the Italian peninsula.

But Italy was only the beginning.

Across the Mediterranean, another major power was rising.

Carthage was a wealthy city located on the coast of North Africa near modern Tunis. It had been founded by Phoenician settlers and developed a powerful commercial network across the western Mediterranean.

Carthage controlled territories and trading interests across North Africa, Iberia, Sardinia, Corsica and other regions.

Rome and Carthage eventually became rivals.

Their competition produced one of the most important conflicts of the ancient world.

The First Punic War began in 264 BCE.

The immediate dispute concerned Sicily, where Roman and Carthaginian interests became entangled in a conflict involving the city of Messana. Rome intervened, and the war expanded into a major struggle for control of Sicily and the surrounding seas.

Rome was originally much less experienced in naval warfare than Carthage.

The Carthaginians possessed a long maritime tradition and powerful fleets. Rome responded by building its own navy and adapting its military experience to naval combat.

The war lasted more than twenty years.

Rome eventually defeated Carthage, and Sicily became Rome's first major overseas province. Sardinia and Corsica later came under Roman control as well.

The conflict had changed Rome.

The city was no longer simply an Italian power.

It had become a Mediterranean state.

But the rivalry with Carthage was not finished.

The Carthaginian commander Hannibal Barca would soon become one of Rome's greatest enemies.

Hannibal belonged to a powerful Carthaginian family and had developed military experience in Iberia. In 218 BCE, the Second Punic War began.

Hannibal made one of the most famous military journeys in ancient history.

He crossed the Alps with his army, including war elephants, and entered Italy from the north.

The journey was extremely difficult. Soldiers had to cross mountainous terrain while facing harsh weather, difficult roads and resistance from local communities. Yet Hannibal succeeded in bringing his army into Italy.

Rome suffered several devastating defeats.

At the Battle of Trebia, Lake Trasimene and especially Cannae, Roman armies suffered enormous losses. The Battle of Cannae in 216 BCE became one of the most famous examples of military encirclement in ancient warfare.

Hannibal's victory at Cannae was extraordinary, but it did not destroy Rome.

This was one of the defining differences between the two powers.

Rome could absorb enormous losses and continue fighting.

The Roman government refused to surrender. New armies were raised, allies were maintained and resources were mobilized. Instead of confronting Hannibal directly every time, Roman commanders increasingly avoided giving him the kind of battle he wanted.

One of the most important Roman commanders during this period was Scipio Africanus.

Scipio changed the strategy of the war by taking the conflict to North Africa. He defeated Carthaginian forces and eventually forced Hannibal to return from Italy.

In 202 BCE, Roman and Carthaginian forces met at the Battle of Zama.

Scipio defeated Hannibal.

Carthage remained independent for a time, but its power was severely reduced.

Rome had emerged as the dominant power in the western Mediterranean.

The victory over Carthage transformed Roman confidence and ambition.

Rome began becoming increasingly involved in the eastern Mediterranean as well.

The Hellenistic kingdoms created after Alexander's death were competing with one another, and Roman leaders gradually intervened in their conflicts. Macedonia became a major Roman target, and Roman armies eventually defeated Macedonian forces.

Greece itself came under Roman control during the second century BCE.

This created an interesting cultural relationship.

Rome conquered the Greek world militarily, but Greek culture profoundly influenced Roman society.

Roman elites studied Greek philosophy and literature. Greek art became highly admired. Roman architects and artists borrowed Greek forms while developing their own styles.

The relationship was complex.

Roman power dominated politically, but Greek culture remained enormously influential intellectually and artistically.

As Rome expanded, its political system also became more complicated.

The Republic had been designed for a city and its immediate surroundings. It was now governing an enormous territory.

Provincial governors exercised significant power far from Rome. Wealth from conquered territories flowed into the Roman economy. Military commanders gained experience and personal influence.

The traditional republican institutions began facing new pressures.

Rome's expansion also transformed its society economically.

Large estates developed in some regions, using enslaved labour captured during wars. Small farmers could face economic difficulties, especially when they were absent from their land for long periods while serving in the army.

The wealth created by conquest was not distributed equally.

Some Roman families became extraordinarily wealthy, while poorer citizens struggled to maintain their economic independence.

These tensions produced political conflict.

The brothers Tiberius and Gaius Gracchus attempted reforms during the second century BCE. Tiberius Gracchus proposed measures concerning land distribution, while Gaius pursued a wider program of political and economic reforms.

Both men were killed during periods of intense political conflict.

Their deaths demonstrated that Roman politics was becoming increasingly violent.

The Republic had always contained competition, but political rivals were increasingly willing to use force against one another.

Military commanders also became more powerful.

Gaius Marius became an important Roman general and politician. His career was connected with changes in military recruitment and organization, although later traditions sometimes exaggerate the extent of a single "Marian reform." What is clear is that Rome's armies were increasingly composed of soldiers whose long-term careers were connected to military service.

This created new political possibilities.

Generals who commanded armies for long periods could develop strong personal relationships with their soldiers.

One of the most important examples was Lucius Cornelius Sulla.

Sulla became involved in a bitter political struggle and eventually marched his army on Rome. This was an extraordinary development because Roman armies had traditionally been expected to serve the Republic rather than become tools for individual commanders to seize political power.

Sulla became dictator and carried out political reforms and violent purges before eventually retiring.

His career demonstrated how military power could be used against Rome itself.

The Republic was changing.

The Roman conquest of the Mediterranean had created wealth and power, but it had also produced inequality, political competition and increasingly powerful military leaders.

Another figure would soon dominate Roman politics.

His name was Gaius Julius Caesar.

Caesar was born into an old Roman family and entered politics during a period of intense competition. He built alliances with powerful figures, including the wealthy Marcus Licinius Crassus and the influential general Pompey.

This informal political alliance became known as the First Triumvirate.

Caesar later became governor of Gaul and launched a series of military campaigns that brought large parts of Gaul under Roman control.

His victories made him extremely popular with his soldiers and increased his political influence.

By this point, the Roman Republic faced a dangerous question.

Could the traditional political system control commanders who possessed powerful armies and enormous personal wealth?

The answer would soon become clear.

After years of campaigning, Caesar returned toward Italy with his army.

In 49 BCE, he crossed the Rubicon River, traditionally marking the boundary beyond which a Roman governor was not supposed to bring his army.

The crossing was an act of rebellion against the Senate and Caesar's political opponents.

Civil war followed.

Caesar defeated his rivals and eventually became the dominant political figure in Rome. He was appointed dictator and introduced several reforms, but his concentration of power alarmed many senators.

In 44 BCE, a group of senators assassinated Caesar.

They believed they were defending the Republic.

Instead, the assassination created another period of civil war.

Caesar's supporters, including Mark Antony and Octavian, fought against the assassins. Octavian was Caesar's adopted heir and would eventually emerge as the most powerful figure in the Roman world.

The Republic had entered its final stage.

The story of Rome's rise had begun centuries earlier with a small settlement beside the Tiber River. Over generations, that settlement became a city, the city became the centre of a republic, and the republic expanded across Italy and the Mediterranean.

Rome's success came from many factors.

Its military organization was important, but military strength alone does not explain the Roman achievement. Rome developed alliances, incorporated conquered communities in different ways, adapted foreign ideas, built roads and infrastructure and created political institutions capable of managing a growing state.

Roman citizenship became an important tool of expansion.

Instead of treating every conquered community simply as an enemy, Rome could create different forms of political relationship. Some communities gained citizenship, while others became allies or provincial subjects.

This flexibility helped create a wider Roman political system.

The Roman army also changed as Rome expanded.

Soldiers fought in increasingly distant regions and spent years away from home. Military commanders became important political figures, and successful generals could return to Rome with enormous prestige.

The same expansion that made Rome powerful also created problems that the republican system struggled to manage.

By the first century BCE, Rome was no longer simply a city state controlling neighbouring Italian communities. It was a Mediterranean power governing provinces separated by enormous distances.

The institutions created for the early Republic were under increasing pressure.

Political violence became more common.

Economic inequality created social tension.

Generals gained personal armies.

Civil wars began replacing peaceful political competition.

The old Republic was approaching its end.

Yet the Roman story was only entering another stage.

Octavian would eventually defeat Mark Antony and Cleopatra and become the dominant ruler of the Roman world. He would later take the name Augustus and create a new political system that preserved many republican institutions while concentrating real power in the hands of one ruler.

The Republic would become an empire.

But that transformation belongs to the next part of the story.

The rise of Rome had already changed the ancient Mediterranean forever.

A city that had once competed with neighbouring communities now controlled Italy and much of the Mediterranean world. Roman armies had defeated Carthage, conquered Greece and intervened in the kingdoms created after Alexander's death.

Rome had become a bridge between different worlds.

Greek culture influenced Roman society. Roman institutions spread across conquered territories. Mediterranean trade expanded. People, goods, languages and ideas moved across territories that had once belonged to separate kingdoms.

The Roman Republic had achieved extraordinary power.

But the political system that created that power was beginning to break under the weight of its own success.