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| 1958, Jan. 27 |
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| The U.S. and the USSR signed an agreement to expand cultural, educational, technical, and sports exchanges. | 1 |
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| April 28 |
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| Nuclear tests began on Eniwetok, an atoll in the Pacific. | 2 |
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| July 15–19 |
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| Eight thousand U.S. troops landed in Lebanon (See 1958, July 15–19). | 3 |
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| Aug. 3 |
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| The USS Nautilus completed the first undersea crossing of the North Pole. | 4 |
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| Sept. 2 |
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| The president signed the National Defense Education Act, which provided loans to college students, grants to schools for facilities in the sciences and foreign languages, and fellowships for graduate students intending to teach. | 5 |
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