San Marino (/sæn məˈriːnoʊ/ ; Italian: [san maˈriːno]), officially the Republic of San Marino(Italian: Repubblica di San Marino), also known as the Most Serene Republic of San Marino (Italian: Serenissima Repubblica di San Marino), is an enclaved microstate surrounded by Italy, situated on the Italian Peninsula on the northeastern side of the Apennine Mountains. Its size is just over 61 km2 (24 sq mi), with a population of 33,562. Its capital is the City of San Marino and its largest city is Serravalle. San Marino has the smallest population of all the members of the Council of Europe.
The country takes its name from Marinus, a stonemason originating from the Roman colony on the island of Rab, in modern-day Croatia. In A.D. 257, Marinus according to legend participated in the reconstruction of Rimini’s city walls after their destruction by Liburnian pirates. Marinus then went on to found an independent monastic community on Monte Titano in A.D. 301; thus, San Marino lays claim to be the oldest extant sovereign state as well as the oldest constitutional republic.
San Marino is governed by the Constitution of San Marino (Leges Statutae Republicae Sancti Marini), a series of six books written in Latin in the late 16th century, that dictate the country’s political system, among other matters. The country is considered to have the earliest written governing documents, or constitution, still in effect.
The country’s economy mainly relies on finance, industry, services and tourism. It is among the wealthiest countries in the world in terms of GDP (per capita), with a figure comparable to the most developed European regions. San Marino is considered to have a highly stable economy, with one of the lowest unemployment rates in Europe, no national debt and a budget surplus. It is the only country with more vehicles than people. In diplomatic terms, following the leadership of Italy it is among the core members of the Uniting for Consensus group.