United States of the Ionian Islands took Lefkada in 1810. The island of Corfu remained occupied by the French until 1814. The Congress of Vienna agreed to place the Ionian Islands under the exclusive "amical protection" of the United Kingdom. Despite British military administration, the Austrian Empire was guaranteed commercial status equal to the UK. The arrangement was formalised with the ratification of the "Maitland constitution" on 26 August 1817, which created a federation of the seven islands, with Lieutenant-General Sir Thomas Maitland its first "Lord High Commissioner of the Ionian Islands". The Party of Radicals (Greek: Κόμμα των Ριζοσπαστών) founded in 1848 was against the
Sea of Marmara , with dimensions .Its greatest depth is . The sea takes its name from Marmara Island, which is rich in sources of marble, from the Greek "μάρμαρον" ("marmaron"), "marble". The sea's ancient Greek name "Propontis" derives from "pro-" (before) and "pontos" (sea), deriving from the fact that the Greeks sailed through it to reach the Black Sea, "Pontos". In Greek mythology, a storm on Propontis brought the Argonauts back to an island they had left, precipitating a battle where either Jason or Heracles killed King Cyzicus, who mistook them for his Pelasgian enemies. The surface salinity of the sea averages