Roman Republic

After 500 BC, Rome joined with the Latin cities in defence against incursions by the Sabines. Winning the Battle of Lake Regillus in 493 BC, Rome established again the supremacy over the Latin countries it had lost after the fall of the monarchy. After a lengthy series of struggles, this supremacy became fixed in 393, when the Romans finally subdued the Volsci and Aequi. In 394 BC, they also conquered the menacing Etruscan neighbour of Veii. The Etruscan power was now limited to Etruria itself, and Rome was the dominant city in Latium.

  Also a formal treaty with the city of Carthage is reported to have been made in the end of the 6th century BC, which defined the spheres of influence of each city and regulated the trade between them.

  Rome's early enemies were the neighbouring hill tribes of the Volscians, the Aequi, and of course the Etruscans. As years passed and military successes increased Roman territory, new adversaries appeared. The fiercest were the Gauls, a loose collective of peoples who controlled much of Northern Europe including what is modern North and Central-East Italy.At the same time, Heraclides states that 4th century Rome is a Greek city.

  In 387 BC, Rome was sacked and burned by the Senones coming from eastern Italy and led by Brennus, who had successfully defeated the Roman army at the Battle of the Allia in Etruria. Multiple contemporary records suggest that the Senones hoped to punish Rome for violating its diplomatic neutrality in Etruria. The Senones marched 130 kilometres (81 mi) to Rome without harming the surrounding countryside; once sacked, the Senones withdrew from Rome. Brennus was defeated by the dictator Furius Camillus at Tusculum soon afterwards.

  After that, Rome hastily rebuilt its buildings and went on the offensive, conquering the Etruscans and seizing territory from the Gauls in the north. After 345 BC, Rome pushed south against other Latins. Their main enemy in this quadrant were the fierce Samnites, who heavily defeated the legions in 321 BC at the Battle of Caudine Forks. In spite of these and other temporary setbacks, the Romans advanced steadily. By 290 BC, Rome controlled over half of the Italian peninsula. In the 3rd century BC, Rome brought the Greek poleis in the south under its control as well.

  Amidst the never ending wars (from the beginning of the Republic up to the Principate, the doors of the temple of Janus were closed only twice - when they were open it meant that Rome was at war), Rome had to face a severe major social crisis, the Conflict of the Orders, a political struggle between the Plebeians (commoners) and Patricians (aristocrats) of the ancient Roman Republic, in which the Plebeians sought political equality with the Patricians. It was the major issue during the History of the Constitution of the Roman Republic, and played a major role in the development of the Constitution of the Roman Republic. It began in 494 BC, when, while Rome was at war with two neighboring tribes, the Plebeians all left the city (the first Plebeian Secession). The result of this first secession was the creation of the office of Plebeian Tribune, and with it the first acquisition of real power by the Plebeians.

Centre of Rome during the Roman Empire

  The Romans looked upon the Greek civilisation with great admiration. The Greeks saw Rome as a useful ally in their civil strifes, and it wasn't long before the Roman legions were invited to intervene in Greece. In less than 50 years the whole of mainland Greece was subdued. The Roman legions crushed the Macedonian phalanx twice, in 197 and 168 BC; in 146 BC the Roman consul Lucius Mummius razed Corinth, marking the end of free Greece. The same year, Cornelius Scipio Aemilianus, the son of Scipio Africanus destroyed the city of Carthage, making it a Roman province.According to tradition, Rome became a republic in 509 BC. However, it took a few centuries for Rome to become the great city of popular imagination. By the 3rd century BC, Rome had become the pre-eminent city of the Italian peninsula. During the Punic Wars between Rome and the great Mediterranean empire of Carthage (264 to 146 BC), Rome's stature increased further as it became the capital of an overseas empire for the first time. Beginning in the 2nd century BC, Rome went through a significant population expansion as Italian farmers, driven from their ancestral farmlands by the advent of massive, slave-operated farms called latifundia, flocked to the city in great numbers. The victory over Carthage in the First Punic War brought the first two provinces outside the Italian peninsula, Sicily and Sardinia. Parts of Spain(Hispania) followed, and in the beginning of the 2nd century the Romans got involved in the affairs of the Greek world. By then all Hellenistic kingdoms and the Greek city-states were in decline, exhausted from endless civil wars and relying on mercenary troops.

  In the following years, Rome continued its conquests in Spain with Tiberius Gracchus, and it set foot in Asia, when the last king of Pergamum gave his kingdom to the Roman people. The end of the 2nd century brought once again threat, when a great host of Germanic peoples, namely Cimbri and Teutones, crossed the river Rhone and moved to Italy.Gaius Marius was consul five consecutive times (seven total), and won two decisive battles in 102 and 101 BC He also reformed the Roman army, giving it such a good reorganization that it remained unchanged for centuries.

  The first thirty years of the last century BC were characterised by serious internal problems that threatened the existence of the Republic. The Social War, between Rome and its allies, and the Servile Wars (slave uprisings) were very hard conflicts, all within Italy, and forced the Romans to change their policy with regards to their allies and subjects. By then Rome had become an extensive power, with great wealth which derived from the conquered people (as tribute, food or manpower, i.e. slaves). The allies of Rome felt bitter since they had fought by the side of the Romans, and yet they were not citizens and shared little in the rewards. Although they lost the war, they finally got what they asked, and by the beginning of the 1st century AD practically all free inhabitants of Italy were Roman citizens.

  However, the growth of the Imperium Romanum (Roman power) created new problems, and new demands, that the old political system of the Republic, with its annually elected magistrates and its sharing of power, could not solve. The dictatorship of Sulla, the extraordinary commands of Pompey Magnus, and the first triumvirate made that clear. In January 49 BC, Julius Caesar the conqueror of Gaul, marched his legions against Rome. In the following years, he vanquished his opponents, and ruled Rome for four years. After his assassination in 44 BC, the Senate tried to reestablish the Republic, but its champions, Marcus Junius Brutus (descendant of the founder of the republic) and Gaius Cassius Longinus were defeated by Caesar's lieutenant Marcus Antonius and Caesar's nephew, Octavian.

  The years 44-31 BC mark the struggle for power between Marcus Antonius and Octavian (later known as Augustus). Finally, on September 2, 31 BC, in the Greek promontory of Actium, the final battle took place in the sea. Octavian was victorious, and became the sole ruler of Rome (and its empire). That date marks the end of the Republic and the beginning of the Principate.