Around this era, the reign of Babylonian King Hammurabi, whose codified laws of retribution shaped Mesopotamian justice, drew to a close, leaving one of history's earliest written legal systems.

The volcanic island of Thera (Santorini) may have erupted around this era, burying the Minoan town of Akrotiri in ash and reshaping the Aegean world.

Pharaoh Ahmose I's forces reportedly breached Avaris around this time, expelling the Hyksos rulers and reunifying Egypt under native rule.

Egyptian forces under Pharaoh Ramesses II clashed with the Hittite army near the Orontes River in one of antiquity's largest chariot battles, later immortalized as an Egyptian victory.

Ancient astronomical calculations have been used by some researchers to date a solar eclipse referenced in Homer's Odyssey to a day resembling early January.

According to Roman tradition, Romulus founded the city of Rome on the Palatine Hill after killing his twin brother Remus.

According to Roman tradition, Romulus founded the city of Rome on the Palatine Hill, marking year one of the Roman calendar.

According to Roman tradition, Romulus plows the sacred boundary and founds the city of Rome on the Palatine Hill.

According to Roman tradition, Romulus founded the city of Rome on the Palatine Hill, marking year one of the Roman calendar.

Traditional Japanese chronology dates the enthronement of Emperor Jimmu, Japan's legendary first emperor, to February 11, 660 BC.

Greek colonists led by Byzas of Megara are said to have founded Byzantium on the shores of the Bosphorus, a settlement that would one day become Constantinople and Istanbul.

A coalition of Babylonians, Medes, and Scythians sacked Nineveh, capital of the Assyrian Empire, ending centuries of Assyrian dominance over the Near East.

Tradition holds that Siddhartha Gautama, the future Buddha, was born in Lumbini in the Shakya kingdom, in what is now Nepal.

Siddhartha Gautama, the future Buddha, is traditionally held to have been born in Lumbini, in what is now Nepal, on this date by some calendrical reckonings.

Many East Asian Buddhist traditions mark April 8 as the birthday of Siddhartha Gautama, celebrated as Hana Matsuri in Japan.

According to widespread Theravada tradition, Siddhartha Gautama, the future Buddha, was born in the Lumbini grove in present-day Nepal.

Tradition in many Theravada countries places the birth of Siddhartha Gautama, the future Buddha, in Lumbini around this date, later celebrated as Vesak.

Ancient Persians celebrated Nowruz, the spring equinox new year, a tradition rooted in Zoroastrian cosmology that endures across Iran and Central Asia today.

Cyrus the Great's Persian forces took Babylon largely without a fight, ending the Neo-Babylonian Empire and freeing captive peoples including the Judean exiles.

Persian king Cyrus the Great's forces took control of Babylon, ending the Neo-Babylonian Empire and reshaping the ancient Near East.

Persian administration under Cyrus the Great continued consolidating rule over Babylon, reshaping governance across the ancient Near East.

The Persian New Year festival of Nowruz, marking the spring equinox, was celebrated across the Achaemenid Empire with feasting and tribute ceremonies.

Athenian hoplites crushed a much larger Persian invasion force on the plain of Marathon, saving the fledgling Greek city-state from conquest.

Athenian hoplites under Miltiades routed a much larger Persian invasion force on the plain of Marathon, an origin point for the marathon race legend.

According to legend, the messenger Pheidippides ran roughly 25 miles from Marathon to Athens to announce Greek victory over Persia, then collapsed and died.

The Athenian statesman Pericles, architect of Athens's golden age and the Parthenon, died of plague amid the early, grinding years of the Peloponnesian War.

The tragedian Euripides, author of Medea and The Bacchae, died in Macedonia, reportedly torn apart by the king's hunting dogs.

Athenian philosopher Socrates was found guilty of impiety and corrupting the youth, a verdict that would soon lead to his execution.

After a ten-year siege, Roman forces under Marcus Furius Camillus captured the Etruscan city of Veii, tradition holds via a secret tunnel dug beneath its walls.

Following his father Philip II's assassination, Alexander moved swiftly to eliminate rivals and secure the Macedonian throne he would use to conquer much of the known world.

Seleucus I Nicator founds Antioch on the Orontes, a city that would become one of the greatest metropolises of the ancient Mediterranean world.

Roman forces under Scipio Aemilianus complete the destruction of Carthage, ending the Third Punic War and erasing Rome's great rival.

Roman almanacs of the late Republic fixed early July as the start of the 'dog days,' when Sirius rose alongside the sun, believed to bring heat, fever, and madness.

Ancient sources place the birth of Julius Caesar, future dictator of Rome, in 100 BC, though the exact date remains debated by historians.

Julius Caesar, the general and statesman who would reshape the Roman Republic and eventually the calendar itself, was traditionally said to be born on this day.

Gaius Julius Caesar was born into a patrician family in Rome, beginning a life that would end the Republic and reshape Western history.

Ancient Romans celebrated Consualia, a harvest festival honoring Consus, god of grain storage, with chariot races and rare public rites.

Roman general Pompey the Great captured Jerusalem, entering the Temple's Holy of Holies and ending Jewish political independence for centuries.

Cleopatra Selene II, twin daughter of Cleopatra VII and Mark Antony, was born, later becoming Queen of Mauretania in North Africa.

Julius Caesar's legions completed their siege works at Alesia, trapping and starving the Gallic confederation under Vercingetorix into surrender.

Julius Caesar led the 13th Legion across the Rubicon River into Italy, defying the Roman Senate and igniting civil war.

Julius Caesar led his legion across the Rubicon River into Italy, defying the Roman Senate and triggering civil war.

Roman factional politics reached a breaking point around this time as Julius Caesar's proconsular command and Senate opposition collided, setting Rome on the path to civil war.

In the summer following Pharsalus, Julius Caesar's pursuit of the fleeing Pompey drew Roman power into Egypt's dynastic struggles and toward Cleopatra.

Cleopatra VII is traditionally said to have given birth to Caesarion, her son by Julius Caesar, tying the fate of Egypt's throne to Rome.

Julius Caesar celebrated an unprecedented series of four triumphal processions through Rome, commemorating victories in Gaul, Egypt, Pontus, and North Africa.

Julius Caesar dedicates his new Forum in Rome, centered on a temple to Venus Genetrix, celebrating his family's claimed divine lineage.

Rome adopted Julius Caesar's new calendar, fixing January 1 as the start of the year for the first time in the Roman world.

Roman senators, led by Brutus and Cassius, stabbed Julius Caesar 23 times in the Theatre of Pompey, ending his dictatorship and the Republic's last illusions of survival.

The Roman Senate, at Mark Antony's urging, confirmed Herod as King of Judea, reshaping the region's politics for decades.

Octavian's fleet crushed the combined forces of Mark Antony and Cleopatra off the coast of Greece, deciding the fate of Rome and Egypt.

Cleopatra VII, last pharaoh of Egypt, died by suicide in Alexandria as Octavian's forces closed in, ending the Ptolemaic dynasty.

Christian tradition commemorates this date as when King Herod ordered the killing of male infants in Bethlehem, fearing a rival to his throne.

Rome's first emperor died at Nola at age 75, allegedly asking friends if he had played his part well in life's comedy.

The Roman Senate formally ratifies Caligula's powers as emperor, beginning a reign that started with popular hope and descended into infamous tyranny.

The Roman Senate confirmed Gaius Caligula as emperor after Tiberius's death, greeted at first with wild popular relief before his reign curdled into infamy.

Rome adopted the Julian calendar reform, replacing a chaotic lunar system with a 365-day solar year that would govern the Western world for over 1,600 years.

Roman forces under Emperor Claudius consolidated control over southern Britain, formally marking the province's incorporation into the Roman Empire.

Roman Emperor Claudius died in Rome, likely poisoned by his wife Agrippina, clearing the path for her son Nero to seize the throne at seventeen.

A fire breaks out near Rome's Circus Maximus and rages for days, destroying vast swaths of the city under Emperor Nero.

The Great Fire of Rome, which broke out on July 19, continued to smolder through parts of the city into mid-September, leaving vast districts in ash.

A fire broke out near Rome's Circus Maximus and raged for six days, destroying much of the city and fueling rumors that Emperor Nero orchestrated it himself.

A fire broke out near Rome's Circus Maximus and raged for six days, destroying much of the city and fueling rumors that Emperor Nero had orchestrated it.

A fire broke out near the Circus Maximus and burned for six days, destroying much of Rome and fueling rumors that Nero fiddled while the city burned.

A fire broke out near the Circus Maximus and raged for six days, destroying much of Rome and fueling rumors that Emperor Nero himself had ordered it set.

Poppaea Sabina, Emperor Nero's second wife, died while pregnant, reportedly after Nero kicked her in a fit of rage, according to the Roman historian Tacitus.

Mount Vesuvius erupted catastrophically, burying Pompeii and Herculaneum under ash and pumice and killing thousands of residents.

Mount Vesuvius erupted violently, burying Pompeii and Herculaneum under ash and pumice, killing thousands and freezing Roman daily life in place.

As Romans marked the Parilia, the anniversary of the city's founding, Mount Vesuvius sat quiet above Pompeii, days from burying the city.

In the months before Vesuvius erupted and buried Pompeii, minor tremors and springs drying up warned a Roman world that read the signs too late.

Mount Vesuvius's catastrophic eruption is traditionally dated by later sources to around this time, burying Pompeii and Herculaneum in ash and pumice.

Trajan was confirmed as Roman Emperor after Nerva's death, beginning a reign that would expand the empire to its greatest territorial extent.

A massive earthquake devastated Antioch while Emperor Trajan wintered there during his Parthian campaign, killing thousands and nearly claiming the emperor himself.

Roman construction began on Hadrian's Wall across northern Britain, a fortified line marking the empire's edge, following the emperor's visit that year.

Amid Rome's chaotic Year of the Five Emperors, Septimius Severus's forces close in on the capital as rival claimants to the throne fall in rapid succession.

Rome and Macedon concluded the First Macedonian War with the Peace of Phoenice, ending years of conflict entangled with the Second Punic War.

A fire severely damaged the ancient Temple of Vesta in the Roman Forum, one of several catastrophic blazes to strike the sacred shrine over centuries.

Christian tradition holds that a priest named Valentine was executed in Rome under Emperor Claudius II, later becoming the namesake of a global holiday.

Roman emperor Aurelian staged a triumph in Rome displaying the captured Palmyrene queen Zenobia, marking the end of her breakaway empire.

Roman Emperor Diocletian's first edict of persecution was posted in Nicomedia, ordering the destruction of churches and scriptures across the empire.

According to Christian tradition, Catherine of Alexandria was beheaded for refusing to renounce her faith, becoming one of the most venerated virgin martyrs of the medieval church.

Roman Emperor Diocletian, weakened by illness, voluntarily abdicated the throne in Nicomedia, an almost unprecedented act for a Roman ruler.

Roman troops in Britain acclaimed Constantine as Augustus following his father's death at Eboracum, launching the career of the emperor who would reshape the Roman world.

Following his victory at the Milvian Bridge, Constantine formally entered Rome, beginning the transformation of the empire under Christian rule.

The Christian Church commemorates Saint Anthony the Great, Egyptian desert hermit whose ascetic life shaped monastic tradition for centuries.

Roman Emperor Constantine I issued an edict establishing Sunday, the 'venerable day of the Sun,' as a day of rest across the empire.

Alexander the Great died in Babylon at age 32, likely from fever, leaving an empire stretching from Greece to India without a clear heir.

Emperor Constantine formally dedicates his new capital, Constantinople, on the site of ancient Byzantium, reshaping the Roman world's center of gravity.

Bishops in Jerusalem dedicated the Church of the Holy Sepulchre and publicly displayed relics believed to be the True Cross, founding a feast still marked today.

Augustine, whose 'Confessions' would reshape Christian theology, is born in Thagaste, a small town in Roman North Africa.

Roman Emperor Julian died from a wound suffered during a chaotic retreat from his invasion of the Sasanian Persian Empire.

Alaric and his Visigothic army breached Rome's walls and sacked the city, the first time in nearly 800 years an enemy had taken it.

Roman writers and later chroniclers marked early September 410 as the moment the unthinkable had happened: barbarians held the Eternal City.

Germanic chieftain Odoacer deposed Romulus Augustulus, the last emperor of the Western Roman Empire, ending nearly five centuries of imperial rule.

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