Destroyed and rebuilt. Many ancient cities were not continuously inhabited, but it is rare that we have exact dates and circumstances for it. It was destroyed, the population killed or sold into slavery, by the Romans in 146 BC after a siege. Julius Caesar refounded the city in 44 BC.
Bronze. Corinth was famous for the quality of its bronze work. Numerous ancient writers refer to it or to expensive items made from it.
A marketplace city. Located between two harbors and across a main road, it was at the junction of both major north-south, and east-west travel.
Triremes were said (by Thucydides) to have been first used in Greece by the Corinthians ca. 8th cent. BC. I'm unaware if current scholarship affirms this view.
The Isthmian games were held nearby, during the year before and the year after the Olympic games.
"Not for everyone is the journey to Corinth." An old saying that evidently meant that Corinth might be a bit much for some to handle.