The Explorers' Club, № DCCCXXVIII

Operation AXIOM: The Cold War—The 60th Anniversary of the K-19 Incident
4 July 1961: The Soviet Hotel-class nuclear-powered ballistic missile submarine K-19 suffered the loss of all nuclear reactor coolant; to avoid a reactor meltdown, officers & crew worked in a highly radioactive environment to jury rig a new coolant system; they succeeded, but most of the sub was irradiated: eight men died of radiation poisoning within three weeks, & fourteen more within two years.

Commentary: As a result of the near-meltdown & irradiation, the K-19 was nicknamed "Hiroshima." The submarine continued to have a cursed career, colliding with a U.S. attack submarine in 1969 & suffering a deadly on-board fire in 1972 that killed thirty sailors.

Lest we forget.