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| 1955, Oct. 4 |
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| Death of Premier Alexander Papagos, at age 71. | 1 |
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| 1956, Feb. 19 |
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| The National Radical Union, led by Premier Constantine Karamanlis, won a narrow victory in parliamentary elections. These were the first national elections in which women voted. | 2 |
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| 1958, March 3 |
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| King Paul named former minister of education Constantine Georgakopoulos to head a caretaker government, following the resignation of Karamanlis. | 3 |
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| May 17 |
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| The new government of Constantine Karamanlis was installed following the victory of his National Radical Union in the Chamber of Deputies. | 4 |
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