Venetian rule in the Ionian Islands to south, including their Greek and Italian names in parentheses: Cythera and Lefkada were additionally called ' or ' and " respectively by the Ottomans. During the Roman Empire, the Ionian Islands were variously part of the provinces of Achaea and Epirus vetus. These would form, with the exception of Cythera, the Byzantine theme of Cephallenia in the late 8th century. From the late 11th century, the Ionian Islands became a battleground in the Byzantine–Norman Wars. The island of Corfu was held by the Normans in 1081–1085 and 1147–1149, while the Venetians unsuccessfully besieged it in 1122–1123. The island of
Ionian obol the silver 30 Lepta coin. Ionian obol The obol (plural "oboli") was the currency of the United States of the Ionian Islands between 1819 and 1863. Until 1834, 1 obol = 4 "lepta" (singular "lepton"), after which 1 obol = 5 lepta. Throughout its existence, the obol was equal to a British half penny. The obol replaced a series of countermarked coins denominated in Turkish paras and copper gazete coins. The obol was issued by the British and was replaced by the Greek drachma when the Ionian Islands were given to Greece, at a rate of 1 drachma = 20