| Date B.C. | Event |
| 753 | Rome founded by Romulus and Remus, twin descendants of Aeneas. |
| 715-674 | Reign of Numa Pompilius (Updated calendar, established system of worship). |
| 673-642 | Reign of Tullus Hostilius (Conquest of Alba). |
| 616-579 | Reign of Tarquin the Elder (Built sewer, circus, forum). |
| 579-535 | Reign of Servius Tullius (Built Servian Wall, organized classes). |
| 535 | Tarquin Superbus murders his father-in-law and assumes the throne. |
| | —Sibylline Books acquired from a Greek priestess. |
| | —War with Volscians; besieged city of Gabii. |
| | —Built Temple of Jupiter on Capitoline Hill. |
| 510 | Death of Lucretia. Tarquin Superbus and family exiled from Rome. |
| Date B.C. | Event |
| 510 | The last king of Rome, Tarquin Superbus, is expelled; Roman republic is founded. |
| 510-496 | Wars against Tarquin and his allies. |
| 508 | Horatius repels the army of Lars Porsena at the Battle of Sublican Bridge. |
| 496 | Final defeat of Tarquin at the Battle of Lake Regillus. |
| 494 | Office of the tribune is established to protect plebian rights. |
| 491 | Coriolanus is sent into exile but returns with an army to threaten Rome. |
| 458 | Cincinnatus rescues a Roman army caught in a trap. |
| 451 | Laws of the twelve tablets created; Virginia is killed to save her from a tyrant. |
| 443 | Censorship established. |
| 396 | War Against Veii—Romans conquer Veii, the foremost Etruscan city. |
| 390 | Battle of Allia, Gauls invade and sack Rome. |
| 343-341 | First Samnite War—Etruria and Campania annexed to Rome. |
| 326-304 | Second Samnite War—Roman humiliation at Battle of Caudine Forks. |
| 312 | Via Appia—famous Roman road started. |
| 312 | Aqueduct building project started. |
| 298-290 | Third Samnite War—Roman victory at the Battle of Sentium. |
| 280-275 | Pyrrhic Wars in southern Italy—First encounter between Greek and Roman armies. |
| 269 | First Roman coins minted. |
| Date B.C. | Event |
| 264-241 | First Punic War. |
| 260 | —Roman naval victory at Battle of Mylae. |
| 243 | —Defeat and Capture of Regulus at Battle of Bagrades. |
| 250 | —Regulus defies Carthage and is murdered. |
| 218-201 | Second Punic War. |
| 216 | —Roman disaster at Battle of Cannae. |
| 212 | —Death of Archimedes at the Battle of Syracuse. |
| 209 | —Romans conquer Nova Carthago, take control of Carthaginian Spain. |
| 207 | —Hasdrubal Barca killed at the Battle of Metaurus River. |
| 202 | —Carthage decisively defeated by Scipio Africanus at the Battle of Zama. |
| 214-205 | First Macedonian War. |
| 200-196 | Second Macedonian War—Roman victory at Battle of Cynoscephalae. |
| 190 | Antiochus III of Syria defeated at Magnesia. |
| 168 | Third Macedonian War—Roman victory at Battle of Pydna. |
| 149-146 | Third Punic War—Carthage destroyed. |
| 146 | Rome destroys Corinth, dominates Greece. |
| Date B.C. | Event |
| 143-133 | Numantine War—Conquest of the interior of Spain. |
| 133-131 | Conquest of Hellenistic empires in East. |
| 133-127 | Civil unrest due to land reforms of the Gracchi. |
| 111-106 | Jugurthine Wars in Africa. |
| 112–101 | Cimbrian War—Romans repel two Germanic tribe that were invading northern Italy. |
| 107-100 | Marius elected consul six times, reforms army. |
| 102 | Teutone tribe defeated at the Battle of Aix. |
| 101 | Cimbri tribe defeated at the Battle of Vercelli. |
| 90-89 | Roman Social War—Close allies win rights of Roman citizenship. |
| 88-84 | First Mithridatic War—instigates conflict between Marius and Sulla. |
| 88 | Marius attempts to take over the army and is exiled from Rome |
| 87 | Sulla victorious over Mithridates at the Siege of Athens. |
| 86 | Marius returns to Rome, takes vengeance on enemies. |
| 83–82 | Civil War of Marius and Sulla: Sulla returns, overthrows Marians, murders enemies. |
| 74-63 | Third Mithridatic War. Lucullus pacifies Asia Minor. |
| 73-71 | Spartacus leads a slave revolt |
| 67 | Pompey conquers the pirates of the Mediterranean. |
| 63 | Cicero puts down the Catiline Conspiracy. |
| 60 | Pompey, Crassus, and Julius Caesar form the first triumvirate. |
| 58-51 | Gallic War: Caesar conquers all of Gaul |
| 52 | Victory over Vercingetorix at the Battle of Alesia. |
| 49 | Caesar crosses the Rubicon and instigates a Civil War between Caesareans and Republicans. |
| 48 | Caesar defeats Pompey at Battle of Pharsalia. |
| 48 | Caesar puts Cleopatra on throne of Egypt at Battle of Alexandria. |
| 46 | Suicide of Cato (the younger) after Republicans are defeated at the Battle of Thapsus. |
| 44 | Assassination of Julius Caesar |
| Date | Event |
| 43 BC | Octavius and Antony form the second triumvirate; agree to murder of Cicero. |
| 42 BC | Defeat of Republican Army at Battle of Philippi. |
| 31 BC | Antony defeated at Battle of Actium. |
| 27 BC | Octavius appointed imperator for life: becomes Augustus Caesar. |
| 27 BC | Gates of Janus shut. Beginning of Pax Romana. |
| 0 BC | Birth of Christ. |
| 11 BC–16 AD | Roman Germanic Wars Germans frustrate Rome's ambition to expand its territories beyond the Rhine. |
| 9 AD | Hermann annihilates Romans at the Battle of Teutoberg Forest. |
| 14 AD | Death of Augustus. Begin reign of Tiberius. |
| 31 AD | Failed conspiracy of Sejanus, captain of the Praetorian Guard. |
| 33 AD | Death of Jesus Christ. |
| 41 AD | Assassination of imperial madman, Caligula. |
| 41-54 | Reign of Claudius: Romans reconquer Britain. |
| 54-68 | Reign of Nero. |
| 61 | Revolt of the Britons under Boadicea: Battle of Watling Street. |
| 64 | Nero "fiddles" while Rome burns. |
| 68 | Nero driven from throne by Praetorian Guards. |
| 69 | Year of Four Emperors: Galba, Otho, Vitellius, Vespasian. |
| 70 | Fall of Jerusalem |
| 70-81 | Reign of Vespasian and Titus. |
| 79 | Destruction of Pompey |
| 80 | Dedication of the Coliseum |
| 70-81 | Persecution of Christians under Domitian. |
| 98-117 | Trajan conquers Dacia |
| 117-138 | Hadrian builds wall in Britain at the Scottish border. |
| 138-161 | Antoninus Pius exceptionally long and benevolent reign. |
| 161-180 | Marcus Aurelius, philosopher emperor, fights the Alemanni. |
| Date | Event |
| 180-193 | Reign of Commodus, degenerate son of Marcus Aurelius. |
| 193-211 | Reign of Septimus Severus. |
| 211-239 | Reign of the later Severans: Caracalla, Elagabalus and Alexander. |
| 239 | Murder of Alexander Severus—throne usurped by the barbarian Maximinus. |
| 239-284 | Military anarchy. |
| 270 | War with Zenobia of Palmyra, Queen of Palmyra. |
| 268–378 | Romans repel invasion of Alemanni. |
| 306 | Constantine proclaimed Augustus by his legions after the death of his father. |
| 312 | Constantine gains sole control of west at Battle of Milvian Bridge. |
| 313 | Edict of Milan: Christianity is made legal in empire. |
| 324 | Constantine becomes sole ruler of entire empire. |
| 325 | First Council of Nicaea is held to combat the Arian heresy. |
| 337-361 | Empire languishes under warring sons of Constantine. |
| 362 | Julian the Apostate tries to restore paganism. |
| 379-395 | Theodosius reigns in the east. Fends off usurpers in the west and briefly reunites the empire. |
| 406 | Waves of German barbarians cross the Rhine and migrate into Roman territory. |
| 407 | The last Roman legion leaves Britain. |
| 410 | Alaric the Visigoth invades Rome. |
| 451 | Europe saved from Attila the Hun at the Battle of Chalons. |
| 455 | Genseric and his Vandals sack and plunder Rome. |
| 476 | Imperial leadership passes to a barbarian king, Odoacer. |
| Date | Event |
| 455 | Genseric and the Vandals Sack Rome |
| 460 | Failed expedition against the Vandals of Africa |
| 476 | Fall of the Western Empire in Italy to Odoacer |
| 493 | Theodoric reigns in the Ostrogoth Kingdom of Italy |
| 527-565 | Reign of Justinian in the Eastern Roman Empire |
| 533 | Belisarius reconquers Vandal kingdom of Africa |
| 538 | Belisarius besieges Ravenna; regains Italy for Eastern Kingdom |
| 620 | Heraclius becomes Emperor. Byzantine Empire administered in Greek, not Roman. |
| 636 | Most of Syria Lost to the Moslems at the Battle of Yermuk. |
| 694 | North Africa lost to the Moslems at the Battle of Utica. |