according to the decisions of the Congress of Wien of 1814, and subsequently in the Kingdom of Italy from 1861. From 1859 to 1927 the territory was included in the First district of La Spezia, part of the Eastern District of the Province of Genoa before and, with the establishment in 1923, the Province of La Spezia then. In 1998 it obtained for its architectural heritage and natural entry in the list of protected World Heritage Site, with the Rolli in Genoa's historic center and the only two goods entered for Liguria, and in 2001 established eponymous Regional Natural Park
