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| 1999, Jan. 1 |
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| Along with France, Belgium, Germany, Luxembourg, Spain, the Netherlands, Ireland, Finland, Portugal, and Austria, Italy adopted the euro, a single European currency, as its monetary unit. | 1 |
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| March 24 |
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| Former prime minister Prodi became the new president of the European Commission. | 2 |
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| May 18 |
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| The popular treasury secretary Carlo Ciampi was elected president, replacing Oscar Luigi Scalfaro. | 3 |
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| June 24 |
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| Nearly 2,000 Italian troops joined KFOR, a NATO-led security force, and entered Kosovo as a peacekeeping army. | 4 |
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| Dec. 18 |
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| Prime Minister D'Alema's Center-Left coalition faltered, and the prime minister briefly resigned. Four days later D'Alema formed a new coalition government that was accepted by the Italian Parliament. | 5 |
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