Calabria, known in antiquity as Bruttium or formerly as Italia, is a region in southern Italy, forming the "toe" of the Italian Peninsula. The capital city of Calabria is Catanzaro. The most populated city and the seat of the Calabrian Regional Council, however, is Reggio.It is bordered to the north by the region of Basilicata, to the west by the Tyrrhenian Sea, and to the east by the Ionian Sea. The region covers 15,080 km2 and has a population of just over 2 million. The demonym of Calabria in English is Calabrian.Calabria was first settled by Italic Oscan-speaking tribes. Two of these tribes were the Oenotrians and the Itali. Greek contact with the latter resulted in Calabria taking the name of the tribe and was the first region to be called Italy.Greeks settled heavily along the coast at an early date and several of their settlements, including the first Italian city called Rhégion, and the next ones Sybaris, Kroton, a settlement where the mathematician Pythagoras later resided, and Locri, were numbered among the leading cities of Magna Graecia during the 6th and 5th centuries BC.