Temesa was valuable because of its copper mines and its trade with the north. Locri conquered Temesa at some time in the first half of the fifth century BC, probably in the 480s or 470s. Croton was disadvantaged by the loss and founded Terina at this time to compensate.[2] Terina's foundation is dated to 480–470 BC.[3] It started minting its own coins sometime after 480 BC, which indicates that it soon became independent from its mother city.[4]