When We Tested Nuclear BombsWhen We Tested Nuclear Bombs Alan Taylor May 6, 2011 36 Photos In Focus Since the time of Trinity -- the first nuclear explosion in 1945 -- nearly 2,000 nuclear tests have been performed. Most of these occurred during the 1960s and 1970s. When the technology was new, tests were frequent and often spectacular, and they led to the development of newer, more deadly weapons. Since the 1990s, there hav
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