Aigeira was located on the Northern coast of the Peloponessos.  The area around Aigeira was populated in the 3rd Century BC by Pelasgian settlers. The city was originally known as Hyperesia.  Eventually, Ionians moved in followed by Achaeans from Tisamenus. According to Homer, its residents took part in the Trojan War (Homer Iliad, Il. 573-577). 

According to Pausanias, Hyperesia was once threatened by a hostile army from Sicyon. The locals defended their city by placing burning torches on their goats ' horns (aiges) at night. The invaders saw the burning torches, thought they were opposed by a very large force, and fled. The Hyperesians then renamed their town Áigeira to honor the goats.

The city was prosperous and was one of the twelve most important cities in the Achaean League. According to Pausanias, there was a statue of Zeus and Athena as well as a temple of Artemis Agrotera. 

It is believed that the city was destroyed by a flood or an earthquake in the first century BC.

Map of Aigeira

Head and arm from statue of Zeus found in Aigeira.

Achaean League, Aigeira. c. 167-146 BC. Hemidrachm