Date: | 1967 |
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Description: | International transit bus emerges from a tunnel leading to the interior of the North American Air Defense Command's (NORAD) Combat Operation's Center in Ch... |
Date: | |
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Description: | A view of Confederate breastworks, ridges in the hillsides for defense, at Western Heights. A fence divides the land in the foreground. Caption reads: "Con... |
Date: | 07 12 1954 |
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Description: | The East Washington Avenue bridge was chosen as the point where a simulated atom bomb struck Madison during a civil defense test, unbeknownst to four canoe... |
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