NICOSIA – With a burst of fireworks and popping champagne, Cyprus ushered in the euro yesterday after it ditched its pound at the stroke of midnight. In the first major currency shift since the introduction of the pound by former British colonial rulers in 1878, Cyprus slipped into the eurozone an hour before Malta, the other Mediterranean island which joined the European Union in 2004. Officials hope admission to the eurozone can help bring together the economies of the divided island, split along ethnic lines since a Turkish invasion in 1974 triggered by a brief Greek-inspired coup. «The foundation is laid for a unified economy with a common currency,» President Tassos Papadopoulos said in a state address. Use of the euro applies only to the southern part of Cyprus controlled by the island’s internationally recognized Greek-Cypriot government. The north, a breakaway Turkish-Cypriot state recognized only by Ankara, will continue to use Turkish lira. To qualify for eurozone admission, Papadopoulos’s administration successfully wrestled down budget deficits and tackled burgeoning public debt. The island is slated to return a surplus of 1.5 percent of GDP in 2007 and a debt of 60 percent of GDP. In 2008, the surplus is expected to be 0.5 percent and public debt is forecast to fall to 48 percent. The pound will cease to be legal tender in cash transactions at the end of January. Authorities hope that within the first 15 days of January most Cyprus notes will be withdrawn from circulation. About 50 percent of coins will also be returned. Cyprus is joining the eurozone with one euro trading for 0.585274 pounds. Adoption of the euro will boost investment, authorities said, although the primary market for its important tourism sector, Britain, is not in the eurozone. Even though Britain has remained out of the euro mechanism, yesterday’s changeover is applicable to two pockets of sovereign territory London has retained on the island since granting Cyprus independence in 1960. Inhabitants of the British-administered Sovereign Base Areas (SBA), including some 4,000 troops and 7,000 dependents, will use the euro in transactions.