At one point both consuls were killed; Marius was appointed to command the army together with Lucius Julius Caesar and Sulla. , Nero is widely known as the first persecutor of Christians and for the Great Fire of Rome, rumoured to have been started by the emperor himself.
 This led to the growing divide of the plebeian groups (populares) and equestrian classes (optimates). Constantinople was the eastern capital, so when the last emperor of the west, Romulus Augustulus, was deposed, there was still a Roman Empire, but it was headquartered in the East. He probably wanted to be the first Roman leader to conquer Parthia, and repeat the glory of Alexander the Great, conqueror of Asia, whom Trajan next followed in the clash of Greek-Romans and the Persian cultures.
A loaf of bread to be eaten was also carried.. Rome entered this war because Syracuse and Messana were too close to the newly conquered Greek cities of Southern Italy and Carthage was now able to make an offensive through Roman territory; along with this, Rome could extend its domain over Sicily. His generals were responsible for the field command; gaining such commanders as Marcus Vipsanius Agrippa, Nero Claudius Drusus and Germanicus much respect from the populace and the legions. The original copper coins (as) had a face value of one Roman pound of copper, but weighed less. One woman, named Roma, suggested that the women burn the ships out at sea to prevent their leaving. This fleet was given up in 278 AD and replaced by allied forces. In historiography, ancient Rome is Roman civilization from the founding of the Italian city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD, encompassing the Roman Kingdom (753 BC–509 BC), Roman Republic (509 BC–27 BC) and Roman Empire (27 BC–476 AD) until the fall of the western empire. New Senators were chosen from among the most accomplished patricians by Censors (Censura), who could also remove a Senator from his office if he was found "morally corrupt"; a charge that could include bribery or, as under Cato the Elder, embracing one's wife in public. , At the end of the Civil War, Augustus reorganized Roman military forces, discharging soldiers and disbanding legions.
The creation of the Praetorian Guard and his reforms in the military, creating a standing army with a fixed size of 28 legions, ensured his total control over the army.  The customs, religion, law, technology, architecture, political system, military, literature, languages, alphabet, government and many factors and aspects of western civilization are all inherited from Roman advancements. The time frame spans from the beginnings of the Republic to the Empire in crisis. Groups of related households formed a family (gens). Despite this, after more than 20 years of war, Rome defeated Carthage and a peace treaty was signed. The Empire did not inherit a set bureaucracy from the Republic, since the Republic did not have any permanent governmental structures apart from the Senate.  He also continued Hadrian's policy of humanizing the laws.  These countries separated from Rome after the capture of emperor Valerian by the Sassanids of Persia, the first Roman ruler to be captured by his enemies; it was a humiliating fact for the Romans. His reign ended the traditional form of imperial rule, the Principate (from princeps) and started the Tetrarchy. This was very provocative to Marius, since many of his enemies were encouraging Sulla to oppose Marius.
, Examined individuals from Rome during the time of the Roman Empire (27 BCE – 300 CE) bore almost no genetic resemblance to Rome's founding populations, and were instead shifted towards the Eastern Mediterranean and Middle East. Some Romans offered prayers and sacrifices on behalf of their favourites, or laid curses on the opposing teams, and some aficionados were members of extremely, even violently partisan circus factions. Laetus soon became jealous and instigated Pertinax's murder by the Praetorian Guard, who then auctioned the empire to the highest bidder, Didius Julianus, for 25,000 sesterces per man. Potter suggests that because the fleet was dominated by non-Romans, the navy was considered non-Roman and allowed to atrophy in times of peace. The Celts in modern-day Wales were independent, tough and resistant to tax collectors and fought Paulinus, as he battled his way across from East to West. It stretched from the entire Mediterranean Basin to the beaches of the North Sea in the north, to the shores of the Red and Caspian Seas in the East. A new versatile type of unit—the cohortes equitatae—combined cavalry and legionaries in a single formation. Many Romans emigrated to Hispania (modern-day Spain and Portugal) and stayed for generations, in some cases intermarrying with Iberians; one of these families produced the emperor Hadrian. Caracalla was a cruel man, and was pursued by the guilt of his brother's murder. Families were based on blood ties or adoption, but were also political and economic alliances. Antony's affair with Cleopatra was seen as an act of treason, since she was queen of another country. Two decades of internal strife and Turkic invasions ultimately led Emperor Alexios I Komnenos to send a call for help to the Western European kingdoms in 1095. It would become the longest conflict in human history, and have major lasting effects and consequences for both empires. Evidence suggests that nominal strengths may have been 1,200 men for infantry regiments and 600 for cavalry, although many records show lower actual troop levels (800 and 400).
Vespasian sent legions to defend the eastern frontier in Cappadocia, extended the occupation in Britannia (modern-day England, Wales and southern Scotland) and reformed the tax system.  Also in the 1st century BC, Vitruvius wrote De architectura, possibly the first complete treatise on architecture in history.