Milan is a city in Italy and the capital of the region of Lombardy and of the province of Milan. The city proper has a population of about 1300000, while the urban area is the fifth largest in the European Union with an estimated population of 4300000 million. The Milan metropolitan area, by far the largest in Italy, is estimated by the OECD to have a population of 7400000 million. The city was founded under the name of Mediolanum by the Insubres, a Celtic people. It was later captured by the Romans in 222 BC, and the city became very successful under the Roman Empire. Later Milan was ruled by the Visconti, the Sforza, the Spanish in the 1500s and the Austrians in the 1700s. In 1796, Milan was conquered by Napoleon I and he made it the capital of his Kingdom of Italy in 1805.[4][5] During the Romantic period, Milan was a major cultural centre in the Europe, attracting several artists, composers and important literary figures. Later, during World War II, the city was badly affected by Allied bombings, and after German occupation in 1943, Milan became the main hub of the Italian resistance. Despite this, Milan saw a post-war economic growth, attracting thousands of immigrants from Southern Italy and abroad. An international and cosmopolitan city, 13.9% of Milan’s population is from abroad.The city remains one of Europe's main transportational and industrial hubs, and Milan is one of the EU's most important centres for business and finance, with its economy (see economy of