Kamandi is an American comic book character, created by artist Jack Kirby and published by DC Comics. In the eponymous series, Kamandi is a teenage boy on a post-apocalyptic Earth that the textual narrative describes as "Earth A.D. (After Disaster)". The Earth has been ravaged by a mysterious calamity called the Great Disaster. The precise nature of the Great Disaster is never revealed in the original series, although it "had something to do with radiation" (in the series' letter column, Jack Kirby and his then-assistant Steve Sherman repeatedly asserted that the Great Disaster was not a nuclear war, a fact confirmed in issue #35). The Disaster wiped out human civilization and a substantial portion of the human population. A few isolated pockets of humanity survived in underground bunkers, while others quickly reverted to pre-technological savagery.