Today in 1969, 54 years ago: 207 and 213 meters underground, at the Nevada proving ground (102 km northwest of the city of Las Vegas), at 6:30 local time, the United States detonates the Spider 1 and Spider 2 atomic bombs (of 1 kiloton each). They are the 629 and 630 bombs of the 1132 that the United States detonated between 1945 and 1992.

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