Halaesa was an ancient city of Sicily, situated near the north coast of the island. The city was of Siculian origin; in 403 BC the tyrant Archonides of Herbita, having concluded peace with Dionysius I of Syracuse, gave the northern part of his territory to the Sicilians as well as to mercenaries and others who had helped him during the war. He named it Halaesa, to which the epithet Archonidea was frequently added for the purpose of distinction. Others attributed the foundation of the city erroneously to the Carthaginians.
It quickly rose to prosperity through maritime commerce. At the start of the First Punic War it was one of the first of the Sicilian cities to submit to the Romans to whose alliance it was always faithful. It was doubtless to this conduct and to the services that it was able to render to the Romans during their wars in Sicily that it was awarded the status of civitas libera ac immunis which gave it the privilege of retaining its own laws and independence, exempt from all taxation, an advantage enjoyed by only five cities of Sicily. In consequence of this advantageous position it rose rapidly in wealth and prosperity and became one of the most flourishing cities of Sicily.
The city appears to have subsequently declined, and had sunk in the time of Augustus to the condition of an ordinary municipal town, but was still one of the few places on the north coast of Sicily which Strabo deemed worthy of mention.
The site has been partially excavated starting in 2017. The agora and theatre are among the monuments so far been brought to light. Portions of the aqueduct can be seen and fragments of statues, as well as coins and inscriptions, have been frequently discovered on the spot.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.