@wellerstein Was Tsar Bomba Oct. 30 or 31? Your nuclear calendar has it on the 31st, but other sites say 30. Thanks for the clarification!
@AtomicHeritage Hmm, must by a typo on my part! Was October 30, 11am Moscow time.
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@wellerstein Okay, thanks!Thanks. Twitter will use this to make your timeline better. UndoUndo
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