Molise is a region of Southern Italy. Until 1963, it formed part of the region of Abruzzi e Molise, alongside the region of Abruzzo. The split, which did not become effective until 1970, makes Molise the youngest region in Italy. The region covers 4,438 square kilometres (1,714 sq mi) (the Aosta Valley is the only smaller region) and has a population of 313,348 (as of 1 January 2015) The region is split into two provinces, named after their respective capitals Campobasso and Isernia. Campobasso also serves as the regional capital.