Back in the 80s. In the 60s it was just megadeath, with a chance of mutants.
(The Krakatoa movie was in 1968, but the winter thing took a while to sink in)
But you are right that the concept was only made popular in the 80s, and a lot of the earlier works were classified or unknown and obscure to the public.
Back in the 80s. In the 60s it was just megadeath, with a chance of mutants.
(The Krakatoa movie was in 1968, but the winter thing took a while to sink in)