Mare clausum defended a "Mare clausum" policy during the age of discovery. This was soon challenged by other European nations. From 30 BC to 117 AD the Roman Empire came to surround the Mediterranean by controlling most of its coasts. Romans started then to name this sea "mare nostrum" (Latin for "our sea"). At those times the period between November and March was considered the most dangerous for navigation, so it was declared ""mare clausum"" (closed sea), although bans on navigation were probably never enforced. In classical law the ocean was not territorial. However, since the Middle Ages maritime republics like the
A.S. Ostia Mare Lido Calcio A.S. Ostia Mare Lido Calcio Associazione Sportiva Ostia Mare Lido Calcio is an Italian association football club located in Ostia, a "frazione" of Rome, Lazio. It currently plays in Serie D. Although a company that represented what was still a village already existed in 1923 as "Associazione Sportiva Ostia", the Associazione Sportiva Ostia Mare Lido Calcio officially by that name existed since 1945. It played for many years in the minor leagues until 1983 when it was in the championship of Prima Categoria (then the second-level football on a regional basis), did not buy a sports title of another company