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Not 501 BCE

The year 501 BCE attached to this entry is not the accepted date. Ancient tradition places Cleisthenes' reform program in the Athenian archon-year 508/507 BCE, dated by the archonship of his rival Isagoras.

Even that is a program rather than a moment. One scholarly reconstruction dates the tribal implementation to 507/506, and Oxford describes reforms continuing in subsequent years; the sources establish no modern-style enactment day.

Cleomenes intervenes, and Athens resists

Cleisthenes, an Alcmaeonid aristocrat, was losing a factional contest to Isagoras and sought support from the wider citizen body. Isagoras called in the Spartan king Cleomenes I, who entered Athens with a small force, expelled 700 households in Aristotle's account, and tried to replace the council with Isagoras and 300 supporters.

The council and the populace resisted. After a two-day siege of the Acropolis the Spartan force departed under truce; Herodotus says the captured opponents who were not Spartan were imprisoned and put to death. Cleisthenes and the expelled families were recalled.

Ten tribes, thirty thirds, five hundred councillors

Cleisthenes replaced the four existing civic tribes with ten, redistributing the citizen body through demes and thirty regional thirds drawn from the city, the coast and the interior of Attica — so each tribe was a cross-section of the country rather than a neighbourhood bloc. The council grew from 400 members to 500, fifty from each new tribe.

The deme became an official basis of civic identification. Aristotle says Athenians were officially identified by deme so that newly enrolled citizens would not be exposed through their fathers' names.

The older kinship bodies were not erased: Aristotle says clans, phratries and inherited priesthoods continued underneath the new civic structure, and he dates the first use of ostracism to 487 BCE.

490 BCE: a deliberately thin center

A Persian expedition commanded by Datis and Artaphernes landed on the plain of Marathon in 490 BCE. The Athenian army confronted it there and was joined by the Plataeans. Darius, who had ordered the expedition, was not present.

The Greek line put the polemarch Callimachus on the right and the Plataeans on the left. Its center was only a few ranks deep so that its frontage matched the Persian line, which left both wings stronger.

The center breaks

After favorable sacrifices the Greeks advanced at a run — at least eight stadia, roughly 1.5 kilometres, in Herodotus's account, though whether they ran the whole distance is debated.

The Persian and Saka center broke through the weaker Greek center. The Greek wings defeated the troops opposite them and then turned against the Persian center. The thin middle was not a trap that sprang: it genuinely broke, and was pursued.

The race back to Athens

The defeated troops fled toward their ships, and in the fighting at the shore the Athenians captured seven vessels while the rest escaped. Callimachus was killed.

The Persian fleet then sailed around Cape Sunium toward Phaleron. The Athenian army hurried back, arrived first and encamped at Cynosarges; finding it already in position, the fleet stayed briefly off Phaleron and then returned to Asia.

Herodotus reports 192 Athenian dead and 6,400 Persian, the latter a precision nobody can verify. The Spartans had not refused to come — he says they agreed but would not march before the full moon, and arrived after the battle.

Spring 480 BCE: the army leaves Sardis

At the beginning of spring in 480 BCE, with the canal at Athos, the Hellespont bridges and the rest of the preparations complete, Xerxes and his army departed Sardis for Abydos.

By the Herodotean chronology those preparations had taken four full years, from spring 484. Roads, depots, bridges and the canal all came before the march.

Two bridges, split by traffic

At the Hellespont — the modern Dardanelles, not the Bosporus — the force prepared a ceremonial crossing on two pontoon bridges joining Asia to Europe.

Herodotus says the road was strewn with myrtle and incense was burned, and that at sunrise Xerxes poured a libation from a golden vessel and cast offerings into the water. Troops and horses used the bridge nearer the Black Sea; baggage animals and the service train used the one nearer the Aegean.

What the crossing changed

Once across, the land army could advance through Persian-controlled Thrace and Macedonia, supported by a fleet moving along the coast and by supplies staged in advance. Greece now faced a coordinated land-and-sea invasion rather than the maritime expedition that had ended at Marathon.

The force was drawn from across the empire rather than one people: Herodotus's traditional catalogue names 46 peoples, his own categories and not modern nations. His million-scale totals are rejected by modern scholars, whose estimates vary widely among themselves.

Even the omen does not survive checking. Herodotus places an ominous daytime darkness at the departure, but no solar eclipse fits Sardis in spring 480, and commentary suggests separate eclipse traditions were conflated.

A birth reconstructed, not recorded

Plato was probably born in 428/427 BCE into a wealthy, politically connected Athenian family. The year is reconstructed from later chronological testimony rather than securely recorded, and no detailed contemporary account of the birth survives.

Later biography names his parents as Ariston and Perictione and his siblings as Glaucon, Adeimantus and Potone. Ariston's family claimed descent from the legendary Athenian king Codrus and Perictione's claimed kinship with Solon — ancient genealogical claims, not independently documented pedigrees.

Athens is the usual choice of birthplace, though Diogenes Laertius preserves an alternative tradition that Plato was born on Aegina while his father was there as a settler.

Why the year is written 428/427

428/427 BCE is the most widely used estimate, reconstructed rather than recorded. The chronology of Apollodorus of Athens is one ancient source behind the traditional date, though it produces tensions when combined with other reported ages and dates.

Diogenes' own statements do not agree internally: his reports of Plato's age at death, of the year Pericles died, and of Plato being 28 when Socrates died generate different birth years. Proposed chronologies include 430/429, 428/427 and 424/423 BCE.

Later tradition assigned Plato the seventh of Thargelion, a birthday shared with Apollo — a late, religiously suggestive tradition rather than an independently corroborated birthday.

How much the ancient biography can carry

Ancient biographical material about Plato is late and frequently anecdotal, which is why the year, the birthplace and even the name all remain dependent on later traditions.

Even the name is contested. One ancient tradition holds that "Plato" replaced an original "Aristocles", and reference works do not treat the question as closed — the IEP says his given name was apparently Aristocles.

Nothing public is recorded as following from the birth itself. His older brothers Glaucon and Adeimantus both later became speakers in the Republic.

A circle that formed rather than opened

The year attached to Plato's Academy — 385 BCE in this listing, 387 in many accounts — marks nothing anyone recorded happening. There was no founding day, no charter, no inauguration.

The Internet Encyclopedia of Philosophy has Plato beginning to associate with philosophers at the Academy's public grounds in the late 390s BCE, with the community developing through the 380s and 370s. He and his associates used the public gymnasium and walks as well as his own nearby property for discussion, research, lectures and reading.

Those grounds lay six stades — roughly three-quarters of a mile — from the Dipylon Gate.

Why 385 is a convenience rather than a founding year

What scholars conventionally call the foundation is usually not a ceremony but a purchase: Plato acquired property and a garden near — not inside — the public sanctuary and gymnasium after his first Sicilian journey. Proposed dates for that acquisition include 387 and 383 BCE.

The range 387 to 383 is the honest span, and some scholars reject the premise of a single founding date at all. Taking c. 387, the earliest end of the range, is about as precise as the evidence permits.

Even the money is contested. Later testimony variously credits Dion of Syracuse or Anniceris of Cyrene with supplying funds connected to Plato's property.

No fees, no curriculum, no enrollment

Plato apparently charged no tuition. Participants still had to provide their own food and living expenses, and the patronage on record concerns specific gifts and property rather than everyone's upkeep.

Mathematics and astronomy were prominent among the associates — Theaetetus, Eudoxus, Philip of Opus — but that evidence shows areas of inquiry, not a documented fixed curriculum or any formal student status.

The place had no charter, no degrees and no enrollment, and Plato never mentions an educational organization in his surviving dialogues.

The overthrow, as later texts tell it

In the late fourth century BCE — by convention 322 BCE — the last Nanda ruler lost Magadha and Chandragupta became its king, founding the Maurya dynasty in a kingdom whose royal centre is conventionally identified with Pataliputra.

The Sri Lankan Buddhist chronicle Mahavamsa says the Brahman Canakka — Chanakya — had the ninth Nanda, Dhanananda, killed and then anointed Candagutta as king.

Beyond that one attributed sentence, the surviving evidence does not establish the detailed course of the Nanda overthrow.

322, 321, or somewhere in a wider range

322 BCE is conventional rather than independently fixed. The accession is variously dated to 324, 322/321, 320/319, or later still.

No contemporary narrative of the overthrow survives at all. The Mahavamsa, Jain legends, Justin's Latin epitome and the Sanskrit play Mudrarakshasa are all much later and disagree on chronology, ancestry and sequence.

Even the order of events is open: whether Chandragupta took Magadha before or after campaigning against Macedonian power in the northwest is not established.

Durdhara and the unnamed Nanda princess

The listed marriage claim does not survive scrutiny. Durdhara is named in Hemachandra's twelfth-century Jain text as Bindusara's mother; a separate tradition mentions an unnamed Nanda daughter, and nothing securely identifies the two as the same woman or makes her Dhana Nanda's sister.

Chanakya's own role rests on those later literary traditions rather than on any contemporary record, and his identification with Kautilya, author of the Arthashastra, has long been debated.

Justin's later account surrounds Chandragupta's rise with a lion and a self-presenting elephant.

Two swapped commanders

In the final phase of the 260 BCE campaign near Changping, northwest of modern Gaoping in Shanxi, Zhao replaced Lian Po after repeated defeats. Qin replaced Wang He with Bai Qi without letting Zhao Kuo learn of the change.

Zhao Kuo attacked. The Qin force feigned defeat, drew Zhao's main body forward, and sent detachments — reported by the Shiji tradition as 25,000 troops and 5,000 cavalry — behind it to cut the retreat and split it from the troops still behind the old defensive line.

Forty-six days

After a source-reported 46-day encirclement and the exhaustion of food, Zhao's troops attempted a breakout in the ninth month of 260 BCE. Zhao Kuo was shot dead and the surviving force surrendered.

The Shiji tradition says Bai Qi then massacred nearly all of them, releasing only 240 of the youngest captives. The opposing defensive works reportedly stretched more than 20 kilometres north to south along the Danshui River.

Numbers written 150 years later

The Shiji was compiled roughly a century and a half after the battle. Its figures — about 400,000 surrendered, 450,000 total Zhao losses across the campaign, 240 of the youngest captives reportedly released — have been accepted by some scholars and rejected as exaggerated or notional by others, and the two large numbers are not interchangeable.

The term keng used for Bai Qi's action denotes mass killing or disposal; it does not prove that hundreds of thousands were literally buried alive. The category translated “soldiers” could also include logistical workers and mobilised civilians.

Qin occupied Shangdang and pressed toward Wuan and other Zhao territory within months rather than pausing, and Zhao continued to function and wage major wars afterwards.

88 BCE: six legions turn toward Rome

A popular law sponsored by the tribune Publius Sulpicius transferred the command against Mithridates VI from the consul Lucius Cornelius Sulla to Gaius Marius. In 88 BCE Sulla returned to his army near Capua and led six legions toward Rome.

Almost none of his senior officers would go with him; Appian says one quaestor stayed. The soldiers, who feared losing a lucrative eastern campaign, did not refuse.

A battle near the Esquiline Forum

Sulla and his fellow consul Quintus Pompeius Rufus occupied several approaches to the city. Sulla's troops entered while residents threw missiles from the rooftops, until he threatened to burn their houses.

His army then fought forces hastily assembled by Marius and Sulpicius near the Esquiline Forum. Appian calls it Rome's first regular battle fought with trumpets and military standards rather than a street clash.

The morning after

Marius, Sulpicius and their supporters fled. Sulla posted guards, restrained looting — publicly punishing some of his own soldiers for it on the Via Sacra — and the next morning used his military control of the city to annul Sulpicius's measures and have about twelve opponents declared public enemies.

The defensible claim about this is narrower than "first general in history to march on Rome": he was the first Roman commander to seize the city with a Roman citizen army in the Republic's civil conflicts. His dictatorship and reform program followed his second conquest of Rome in 82 BCE.

As for when in 88 BCE: no ancient source supplies a day, and a recent scholarly reconstruction places the march in July or August.

51 BCE: a siege aimed at water

Uxellodunum held ample grain and could not easily be stormed, so in 51 BCE the Romans made its water supply the target rather than its food or its walls.

Gaius Caninius Rebilus, pursuing the rebels with two legions, destroyed an attempted resupply operation and completed a circumvallation; Gaius Fabius then joined the siege. Caesar arrived and blocked the defenders' dangerous descent to the encircling river with archers, slingers and artillery, leaving them a single spring below the walls.

A sixty-foot ramp to command a spring

Roman engineers raised a ramp 60 Roman feet high, topped with a ten-story tower, to dominate the approaches to that spring, while miners intercepted and diverted its underground veins.

The defenders rolled barrels packed with pitch, tallow and dry wood down the slope as burning weapons against the siege works. When the spring suddenly dried, they surrendered.

Hands, not executions

Caesar ordered the hands cut off everyone who had borne arms, and left them alive precisely so the punishment would stay visible.

Drapes, the Senonian leader captured when Caninius attacked the rebels' supply base, was not executed either: Aulus Hirtius — Caesar's officer, and the author of the Book VIII account rather than Caesar himself — says he deliberately refused food and died.

This was the last major fortified holdout described in the Gallic War, though not the final recorded clash; Hirtius goes on to report fighting involving Labienus and Commius.

27 November 43 BCE: a magistracy by statute

The lex Titia, passed on 27 November 43 BCE, created a new five-year magistracy for Mark Antony, Lepidus and Octavian: the triumviri rei publicae constituendae, triumvirs for settling the state.

The plebeian tribune Publius Titius introduced the measure at a public assembly held amid the triumvirs' armed forces. The three had entered Rome on three successive days beforehand, each accompanied by a praetorian cohort and a legion.

What the law actually granted

It let them make or annul laws without first consulting Senate or people, exercise jurisdiction without appeal, and nominate magistrates.

Unlike the informal coalition retrospectively called the First Triumvirate, this was a statutory office. And the promise to settle the state did not mean restoring competitive republican government — the law concentrated extraordinary authority in three men.

Agreed on an island, before the vote

The statute gave legal form to a bargain negotiated over a two-day conference on a river island in northern Italy, with Lepidus providing security. Octavian sat between the other two; the initial provincial division gave Antony most of Gaul, Lepidus Spain and Narbonese Gaul, and Octavian Africa, Sicily, Sardinia and nearby islands.

The bargain covered more than provinces. Eighteen prosperous Italian cities were promised to the soldiers — land and buildings, as though captured enemy territory — and the proscriptions were planned at the conference, with executioners sent ahead before the triumvirs formally entered Rome. Appian estimated about 300 senators and 2,000 equestrians sentenced to death and confiscation.

The claim does not survive a check

No consulted ancient or scholarly source identifies an event in AD 43 that suddenly gave Rome “complete control” of the Mediterranean. A Cambridge history of Roman naval power places the establishment of Roman naval domination across the sea between the victories at Mylae in 260 BCE and Myonnesus in 190 BCE.

The phrase is undefined in any case: naval supremacy, direct provincial government, client-state influence and ownership of every coastline are different claims. If political control around the basin is what is meant, Egypt’s conquest and incorporation in 30 BCE is a more defensible landmark.

What Rome actually did that year

The securely attested major Roman campaign of AD 43 was Claudius’s invasion of Britain under Aulus Plautius — outside the Mediterranean basin entirely. Modern scholarship describes the force as four legions plus auxiliaries; the London Museum puts the estimate at 40,000 soldiers.

Cassius Dio, writing roughly a century and a half later, names the exiled British ruler Verica — Berikos in his text — whose expulsion and appeal supplied the occasion for intervention. Dio also reports that the troops balked at sailing to Britain because it lay beyond what they regarded as the inhabited world.

A bridgehead, not a conquest

Claudius briefly joined the campaign; Dio says he spent sixteen days in Britain before returning to Rome. The invasion opened a gradual conquest rather than instant control — English Heritage states that Roman control expanded over approximately the next 45 years.

Even the landing place remains debated, with Richborough a leading candidate rather than a settled fact. London was not founded on the invasion day either; its emergence is dated to around 47–50 CE.

Four legions arrive by Passover

Josephus places Titus and four Roman legions outside Jerusalem by Passover in the year 70. XII Fulminata and XV Apollinaris shared a camp at Mount Scopus, northeast of the city; V Macedonica camped nearby, and X Fretensis occupied the Mount of Olives to the east.

The defenders looked out on three newly fortified camps. Josephus records that Titus had offered negotiations through him the preceding day and received no satisfactory answer.

A coup inside the Temple

On 14 Xanthicus, the day this entry marks, Eleazar opened the Temple’s inner gates for worshippers. John of Gischala sent armed men in among them with weapons concealed under their clothes.

They seized the inner Temple, killed or trampled bystanders, and reduced the city’s three rebel factions to two. Worshippers near the altar were trampled while private enemies used the confusion to settle personal scores, according to Josephus.

How firm is 14 April

The conversion of 14 Xanthicus to 14 April is conventional. Josephus uses Macedonian month names inconsistently, sometimes for Julian and sometimes for Judaean dates, and equating Xanthicus mechanically with Nisan conceals the difference between a named Macedonian month and a lunar festival date.

Only the Temple coup is directly dated to that day. The Roman moves assigned to it — bringing the main camp closer, leveling gardens, walls, trees, hollows and rocky obstacles between Mount Scopus and the city’s defenses — are reconstructed from adjacent passages rather than individually timestamped.

The wall that eventually enclosed the whole city came later; this was the opening encampment, not the completed circumvallation.