Qualla: Battle of Thermopylae (279 BC)

Battle of Thermopylae (279 BC): Introduction

Fri, 24 Apr 2026 00:00:00 GMT

Photo credit antmoose, CC BY 2.0. By 279 BC, Greece had stopped imagining what would happen if a barbarian invasion came over the mountains. Alexander had been dead for forty-four years. His successors had carved up the world from the Adriatic to the Indus and had left the Greek mainland politically exhausted. So when 85,000 La Tene Celts came south through the Carpathian basin and into Pannonia, then through Macedonia - killing the Macedonian king Ptolemy Keraunos in a battle so decisive that the Macedonian throne went briefly empty - the cities of central Greece had to scramble for an answer none of them had rehearsed. They scratched together a coalition of Aetolians, Boeotians, Athenians, Phocians, and Locrians, and sent it to the same pass where Leonidas had died two centuries earlier.

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Battle of Thermopylae (279 BC): The Army That Worried the Diadochi

Fri, 24 Apr 2026 00:00:00 GMT

Photo credit antmoose, CC BY 2.0. The Gauls who reached Greece in 279 BC came from the La Tene cultural complex of central Europe - a mix of related but politically distinct peoples that the Greeks called Galatae. Their armies had been pressing southeast for fifty years, raiding into Illyria and Pannonia, settlin...

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Battle of Thermopylae (279 BC): The Pass Held - For a Day

Fri, 24 Apr 2026 00:00:00 GMT

Photo credit antmoose, CC BY 2.0. The Greek coalition took up positions at Thermopylae, where a Greek army has always taken up positions when there is a way south to be denied. The first Gaulish assault, against shield walls and prepared ground, was bloody. Brennus understood quickly that the pass would not be fo...

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Battle of Thermopylae (279 BC): The Defence of Aetolia

Fri, 24 Apr 2026 00:00:00 GMT

Photo credit antmoose, CC BY 2.0. Acichorius reached Aetolia and discovered something the Greeks understood about themselves: that an invading army has to win every fight, but a defending population only has to bleed it. The town of Kallion was overrun and destroyed, and what happened to its inhabitants is descri...

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Battle of Thermopylae (279 BC): The Sack That Failed at Delphi

Fri, 24 Apr 2026 00:00:00 GMT

Photo credit antmoose, CC BY 2.0. Brennus, with the depleted army, pushed south through the now-undefended Thermopylae pass and made for Delphi - the sanctuary of Apollo, the most prestigious religious site in Greece, the storehouse where every Greek city had been depositing offerings for six hundred years. The P...

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Battle of Thermopylae (279 BC): What Aetolia Got For Saving Greece

Fri, 24 Apr 2026 00:00:00 GMT

Photo credit antmoose, CC BY 2.0. The Aetolian League had been a peripheral confederation before 279 BC. After it, the Aetolians were the heroes of central Greece, and they had earned a real political voice. They erected a memorial portico at Delphi - the Western Portico, one of the largest buildings near the san...

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