Corsica Corsican honey, of which there are six official varieties, is certified as to its origin (Appellation d'origine contrôlée) by the French National Institute of Origin and Quality (Institut National des Appellations d'Origine – INAO). Corsica's main exports are granite and marble, tannic acid, cork, cheese, wine, citrus fruit, olive oil and cigarettes. Corsica has four international airports: All airports are served by regional French airline Air Corsica, as well as Air France which mainly offers connections to Paris-Orly. Budget carriers such as EasyJet and Ryanair offer seasonal connections to different cities in Europe. The island has of metre gauge railway.
Medieval Corsica conflicts with Otto I of Germany, King Berengar II of Italy managed to make himself master of Corsica. In 962, Berengar was defeated and his son, Adalbert, fled to Corsica, whence he launched two separate attacks on Ottonian Italy, before going into exile in Burgundy. Following Otto II's reestablishment of imperial authority over Corsica, a period of political turmoil began, although the island remained subject to the margraves of Tuscany, who periodically made their power felt there. The island at this time appears to be generally divided, as it is down to the present time, into a north and a