VI, the Gaul Vercingetorix, and the Egyptian queen Cleopatra. At home, the Republic similarly experienced a long streak of social and political crises, which ended in several violent civil wars. At first, the Conflict of the Orders opposed the patricians, the closed oligarchic elite, to the far more numerous plebs, who finally achieved political equality in several steps during the 4th century BC. Later, the vast conquests of the Republic disrupted its society, as the immense influx of slaves they brought enriched the aristocracy, but ruined the peasantry and urban workers. In order to address this issue, several social reformers, known as the Populares, tried to pass agrarian laws, but the Gracchi brothers, Saturninus, and Clodius Pulcher were all murdered by their opponents, the Optimates, keepers of the traditional aristocratic order. Mass slavery also caused three Servile Wars; the last of them was led by Spartacus, a skillful gladiator who ravaged Italy and left Rome powerless until his defeat in 71 BC. In this context, the last decades of the Republic were marked by the rise of great generals, who exploited their military conquests and the factional situation in Rome to gain control of the political system. Marius (between 105 and 86 BC), then Sulla (between 82 and 78 BC) dominated in turn the Republic; both used extraordinary powers to purge their opponents. These multiple tensions led to a series of civil wars; the first between the two generals Julius Caesar and Pompey. Despite his victory and appointment as dictator for life, Caesar was assassinated in 44 BC. Caesar's heir Octavian and lieutenant Mark Antony defeated Caesar's assassins Brutus and Cassius in 42 BC, but they eventually split up thereafter. The final defeat of Mark Antony alongside his ally and lover Cleopatra at the Battle of Actium in 31 BC, and the Senate's grant of extraordinary powers to Octavian as Augustus in 27 BC – which effectively made him the first Roman emperor – marked the end of the Republic. History Founding Rome had been ruled by monarchs since its foundation. These monarchs were elected, for life, by men who made up the Roman Senate. The last Roman monarch was named Lucius Tarquinius Superbus (colloquially known as "Tarquin the Proud") and in traditional histories Tarquin was expelled from Rome in 509 BC because his son, Sextus Tarquinius, raped a noblewoman named Lucretia (who had afterwards taken her own life). The