Google Ngrams results for how the Soviet's 100 Mt bomb was talked about — "Tsar Bomba" nomenclature is very recent.pic.twitter.com/fkbnsH1BDJ
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@APSHistory In the documents, they refer to it mostly by its official RDS codename, 202. Bo-ring.