Corsica and killings culminated in the assassination of Prefect Claude Érignac in 1998. In 2013, Corsica hosted the first three stages of the 100th Tour de France, which passed through the island for the first time in the event's 110-year history. Corsica was formed about 250 million years ago with the uplift of a granite backbone on the western side. About 50 million years ago sedimentary rock was pressed against this granite, forming the schists of the eastern side. It is the most mountainous island in the Mediterranean, a "mountain in the sea". It is also the fourth largest island in
Medieval Corsica was not until 1511 that the other barons were crushed and the Bank had established island-wide rule. Medieval Corsica The history of Corsica in the medieval period begins with the collapse of the Western Roman Empire and the invasions of various Germanic peoples in the fifth century AD, and ends with the complete subjection of the island to the authority of the Bank of San Giorgio in 1511. In the early decades of the fifth century, effective Roman authority all but vanished from Corsica. The island became disputed between the Ostrogoths, Roman "foederati" who were settled in the lands along