Win or lose, ones choices define them
Alexander at Gaugamela October 1st
Gaugamela, 1 October 331 BC, is the day the Achaemenid field army ceased to be a coherent instrument of empire. Everything after it — Babylon, Susa, Persepolis, the death of Darius — follows from that afternoon on a flattened plain near modern Erbil.
Background
Alexander had already beaten Darius once, at Issus in November 333. That battle cost Darius his camp, his family, and the western seaboard. He offered terms: the lands west of the Euphrates, a huge ransom, a marriage alliance. Alexander refused. After Tyre, Gaza and Egypt (including Siwa), he was no longer fighting a Greek “revenge war.” He was claiming Asia.
In summer 331 he left the Mediterranean, crossed the Euphrates at Thapsacus, and marched toward the Tigris. Darius had time. He called up the central and eastern satrapies — Bactrians, Sogdians, Indians, Saka cataphracts — and chose ground he could shape. Near the village the Greeks called Gaugamela (“camel’s hump”), he had the plain levelled so scythed chariots and massed cavalry could run freely. Arbela (Erbil) sat behind him as a supply base. He meant this to be his battle: open ground, no river pinning him as at Issus, numbers large enough to envelope both Macedonian flanks.
Greek figures for the Persian host (hundreds of thousands, even a million) are propaganda. What is credible is cavalry superiority — perhaps on the order of 30,000-plus horse against Alexander’s roughly 7,000 — and a line long enough to overlap him. Alexander brought about 40,000–47,000: the pike phalanx, hypaspists, Companion cavalry, Thessalians, light troops. Quality and cohesion, not mass.
On the night of 20–21 September, after the Macedonians crossed the Tigris, a near-total lunar eclipse occurred. Babylonian omen tradition read it against the king. Eleven days later the armies faced each other. On 30 September Alexander came in sight of the Persian line, spent the day reconnoitring, and refused Parmenion’s advice to attack in the dark. He let the Persians stand to arms all night. Dawn on 1 October was his.
On the field
Darius sat in the centre with the royal guard and Greek mercenaries — the last reliable infantry he had. Mazaeus held the Persian right; Bessus and the eastern horse the left. Chariots were posted in front to break the phalanx.
Alexander’s answer was not a straight clash. He formed something close to a hollow box: phalanx in the centre, Companions on the right under his own hand, Thessalians on the left under Parmenion, both wings refused (angled back) and screened by mixed cavalry and light infantry so a double envelopment could not immediately roll him up. A second infantry line covered the rear. The whole army could face outward if surrounded.
He then advanced obliquely, drifting to his right. That forced the Persian left to stretch and follow. Chariots that reached the line were channelled into lanes and cut down by Agrianians and light troops; they did not break the phalanx. As Persian cavalry peeled left to contain Alexander’s drift, a gap opened in their left-centre, near Darius.
That was the moment. Alexander pulled Companions, hypaspists and the rightmost taxeis of the phalanx into a wedge, himself at the point, and drove at the king. The “hammer and anvil” of Macedonian war: pike blocks pinning the centre, Companion wedge punching the seam. Darius’s chariot tangled in the press; the Greek sources have him quit it for a horse and flee. Whether he broke first or his guards did is less important than the effect: the imperial centre collapsed when the king left the field.
It was not yet over. On Alexander’s left, Mazaeus’s horse pressed Parmenion hard; some Persians and Indians even broke into the Macedonian camp. Parmenion sent for help. Alexander broke off the chase, turned, and met the returning Persian right in what several accounts treat as the bloodiest fighting of the day. The Thessalians held. When news of Darius’s flight reached Mazaeus’s wing, that effort also dissolved. The last Achaemenid army of the old style disintegrated rather than withdrew in order. The Babylonian diary is blunt: the king’s troops left him.
Macedonian dead, if Arrian is believed, were a few hundred; other authors give more. Persian losses were heavy. Darius himself escaped toward Media.
Immediate result
The road to the rich core of the empire was open.
- Arbela was plundered.
- Mazaeus, who had commanded the Persian right, rode to Babylon and twenty days after the battle surrendered the city. Alexander entered through the Ištar Gate, sacrificed to Marduk, and — the political masterstroke — kept Mazaeus as satrap. That told every remaining grandee: submit and keep your rank.
- Susa opened in December 331; its treasury financed the next year.
- The Persian Gates were forced in January 330 after a hard mountain fight with Ariobarzanes.
- Persepolis was occupied the same month. The city was given to the army to sack; months later the palace complex was burned — revenge for Xerxes’ Greece, or a drunken decision, or both. Either way, the ceremonial heart of the dynasty was gone.
Darius still lived, gathering what he could at Ecbatana. That was already a remnant court, not an empire in arms.
Longer-term result
Gaugamela did not immediately kill Darius. Bessus and the eastern nobles did that in July 330, near modern Damghan, as Alexander closed in. They proclaimed Bessus “Artaxerxes,” which gave Alexander his next war-aim: punish the regicides, claim the Achaemenid mantle, and chase resistance into Bactria and Sogdia. Darius received a royal funeral. Alexander could now style himself successor, not only conqueror.
Structurally, the battle ended the Achaemenid system as a going concern:
- The western and central satrapies had no covering army. One by one they bargained.
- Alexander kept Persian forms — satraps, court ritual, later the proskynesis quarrel — because he needed the machine, not a vacuum. Gaugamela made that policy possible; Issus had only made it thinkable.
- For the Greek world, the “Panhellenic” war was notionally complete. What followed (the east, India, the mutinies) was Alexander’s own imperial war.
- For Iran, the shock was civilisational. A dynasty that had ruled from the Indus to the Aegean for two centuries lost its capitals in a single campaigning season after one lost afternoon. Later Iranian memory treated Alexander as both world-conqueror and destroyer of the sacred centre at Persepolis.
The fighting in the far east lasted years. The decision was 1 October 331. After Gaugamela there was no second Persian host that could meet Alexander in the open and hope to win. Everything else was pursuit, garrison, and the problem of ruling what the wedge had broken.
These are all 1 October events — a date that keeps turning up at hinges of empire, church, and revolution. Below is the cluster you listed, in order.
331 BC — Alexander defeats Darius III at Gaugamela.
Eleven days after a lunar eclipse on 20 September, Alexander’s Macedonians met Darius III on a prepared plain near modern Erbil in Iraqi Kurdistan. Darius had flattened the ground for scythed chariots and massed cavalry; the Greek numbers for the Persian host are inflated, but he almost certainly outnumbered Alexander’s roughly 47,000. Alexander refused a night attack, spent 30 September reconnoitring, then on 1 October drove a wedge toward Darius himself. The Great King fled; Babylon opened within weeks, Susa and Persepolis followed. The Achaemenid imperial centre did not recover. The date is fixed by a Babylonian astronomical diary that records both the eclipse and the battle.
366 — Damasus I is elected pope.
Liberius had died on 24 September. A minority consecrated the deacon Ursinus; the majority chose Damasus, consecrated at the Lateran on 1 October. Street fighting followed at the Julian and Liberian basilicas; the urban prefect backed Damasus and banished Ursinus. Damasus then spent eighteen years defending Nicaea against Arianism, commissioning Jerome’s Vulgate work, restoring catacombs, and pressing Rome’s apostolic claim against Constantinople. He is the patron of archaeologists.
959 — Edgar the Peaceful becomes king of all England.
His elder brother Eadwig died on 1 October. Since 957 the kingdom had been split at the Thames: Eadwig in Wessex, Edgar in Mercia and the north. Edgar, about sixteen, reunited it. The later nickname “Peaceful” is slightly misleading — he could ravage Thanet — but his reign (to 975) was unusually stable: Dunstan recalled and promoted, coinage protected, a large fleet built, and the Danelaw left its own law. The Bath coronation of 973 became the template for later English coronations.
965 — Pope John XIII is elected.
Five months after Leo VIII’s death, Otto I’s envoys (Otger of Speyer and Liutprand of Cremona) steered the Romans toward John, bishop of Narni. He was consecrated on Sunday 1 October. The Roman nobility kidnapped him that December; Otto restored him in 966 and punished the rebels. John then crowned the boy Otto II emperor (Christmas 967), crowned Theophano empress (972), and finally erected the metropolitan see of Magdeburg for the Slavic mission. He died in 972.
1553 — Coronation of Mary I of England.
At Westminster Abbey, Stephen Gardiner presented her as “rightful and undoubted inheritrix.” She was the first woman to take the English throne in her own right without a living husband as co-monarch. The rite restored Catholic ceremonial after Edward VI. The reign that followed — Spanish marriage, Wyatt’s rising, the heresy burnings — is why later Protestant memory fixed her as “Bloody Mary.” The coronation itself was the legal and liturgical claim that a woman could wear the crown alone.
1588 — Coronation of Shah Abbas I of Persia.
In Qazvin, the weak Shah Mohammad Khodabanda placed the crown on his seventeen-year-old son. The Qizilbash amir Murshid Qoli Khan Ostajlu had marched him west after an Uzbek invasion of Khorasan; a street demonstration finished the transfer. Abbas later broke the Qizilbash grip with a gholam army of Georgians, Circassians and Armenians, recaptured Tabriz and the Caucasus from the Ottomans, took Hormuz from the Portuguese with English help, and made Isfahan the Safavid capital. The 1 October ceremony is the start of that forty-year reign. (Some sources give late September 1587 for the palace handover; the conventional Western “coronation” date used in the October 1 lists is 1588.)
1730 — Ahmed III is forced off the Ottoman throne.
The Tulip Era ended in the Patrona Halil revolt. After Iranian successes against Ottoman garrisons, an Albanian former janissary raised the bazaar on 28 September. Ahmed had his son-in-law, Grand Vizier Nevşehirli Damat Ibrahim Pasha, strangled. It was not enough. On 1 October he abdicated for his nephew Mahmud I and went into the kafes. Rebels then wrecked the Kağıthane pleasure palaces. Ahmed died in confinement in 1736.
1787 — Suvorov beats the Turks at Kinburn.
Old Style 1 October (12 October New Style), on the sand spit opposite Ochakov at the Dnieper mouth. Hasan Pasha landed about 6,000 janissaries to take the weak fort covering Kherson. Suvorov counter-attacked with far fewer men, was wounded twice, and was saved by grenadier Stepan Novikov. A late Cossack flanking move across the shoals broke the landing. Ottoman dead ran to several thousand; the survivors swam for the boats at night. Catherine awarded Suvorov the Order of St Andrew. The fight opened the war that later took Ochakov and Izmail.
1791 — First session of the French Legislative Assembly.
The Constituent Assembly had dissolved itself after passing the Constitution of 1791 and, on Robespierre’s motion, barring its own members from the next house. Seven hundred and forty-five mostly young, inexperienced deputies met in the Salle du Manège. Louis XVI was now “King of the French” by constitution, not by divine right alone; he still held a veto he meant to use. The Feuillants sat to the right, Brissotins/Girondins to the left. Within a year the session produced war with Austria, the 10 August rising, and the Convention. The left–right seating of that room is the ancestor of the modern spectrum.
1795 — The Austrian Netherlands annexed by Revolutionary France.
After Fleurus (June 1794) Austria abandoned the southern Netherlands. On 9 Vendémiaire Year IV (1 October 1795) the Convention decreed the reunion of the Austrian Netherlands and the Prince-Bishopric of Liège with the Republic. They were cut into nine departments (Lys, Dyle, Ourthe, Forêts, and the rest). Campo Formio in 1797 made Austria admit the loss. The annexation is the legal birth of “Belgium” as a French administrative block; 1815 would rearrange it again.
Taken together, 1 October is a day of transfer: a Persian empire to a Macedonian king, a divided England to one teenager, two popes onto contested chairs, a Catholic queen onto a Reformation throne, a Safavid revival, an Ottoman tulip court smashed, a Russian general on a spit of sand, a French constitution that would not hold, and the Habsburg Low Countries folded into the Republic.

