Aetna founded

475 BCE.

Shown on the map at 37.617°, 14.900°.

Aetna (Ancient Greek: Αἴτνη, Aítnē), was an ancient city of Magna Graecia in Sicily, situated at the foot of the mountain of the same name, on its southern declivity. It was originally a Sicelian city, and was called Inessa or Inessum.

Text from the Wikipedia article Aetna (city), licensed CC BY-SA 4.0.

Everything else in 475 BCE

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