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| 1971, Dec. 18 |
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| Martial law was lifted throughout the country (Jan. 1, 1972) except in Athens, the Piraeus, and Salonika. | 1 |
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| 1973, June 1 |
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| Greece abolished the monarchy and proclaimed itself a republic. In a referendum on July 29, voters favored this constitutional change, and George Papadopoulos was elected the first president of the Greek Republic. | 2 |
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| Nov. 25 |
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| The Papadopoulos government was overthrown in a bloodless coup d'état. Phaidon Ghizikis became president and Adamantios Androutsopoulos prime minister. | 3 |
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| Feb.–Dec |
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| Students and workers clashed with security forces, resulting in the closure of universities and the proclamation of martial law in November, when students took over Athens Polytechnic. Universities were reopened in December. | 4 |
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