Calabria has been inhabited since Prehistory and one of the oldest evidence of human presence is "Bos primigenius", a graffito found inside "Grotta del Romito" at Papasidero dated around 9.500 BC. A lot of Paleolithic sites were found here instead of Neolithic of which were found traces of huts and necropolis.
Due to its geographical location Calabria is always been a continuing migrations area full of different populations always on fight to overcome so the region had been changing its name after every new settlement.
Greek settlement in Calabria started around VIII Century BC all along the coastline. Greeks found so many settlements that were often on fight between each other and someone even found new sub-settlements.
Lucanians descendants of Samnites settled on Tyrrhenian sea side around V Century BC and after about ten years they even overcome on Greeks' settlements nearby. The other constant threat under wich Greeks lived were Bruzi settled to the South.
They both lined up against Rome but with no success and when Roman Empire begun to rise started also the decline of this region.