After posting about "nuclear bombs and warfare in fantasy", of course I thought about "post-nuclear fantasy" and "post-apocalyptic" fantasy as a whole...
And it is quite interesting how recurring the motif of "Magic before and after our time" is. You know, the alliance of both "There used to be a time of wonders and magic in the distant past, but it went away" and "There will be again spells and monsters and demons once the apocalypse happened". The idea of a distant-past fantasy mixed with a distant-future fantasy was usually complimentary.
Today most people think of "Adventure Time" as a depiction of this motif, even thinking of it as a "subversion" because it shows magic was there before humans appeared, then went into hiding, and returned only after humanity was destroyed. Itself comes from "Wizards!" the movie which also has this take that "the fairies of old could only thrive after the nuclear winter". And deep down it can all come back to the vintage classic of fantasy Shannara, which depicts a Middle-Earth copy as a post-apocalyptic universe where most of fantasy elements are born of mutation or ancient technology... Except for the elves and some nature spirits which existed before humanity appeared and do come from the "time of legends".
More recently fantasy readers will be also accustomed to this through the cyclical time structure of "The Wheel of Time", where the fantasy adventures we read about are both the distant past from which our myths and legends will be born, and yet the aftermath of the apocalyptic fall of an hyper-advanced society of our future...
But by the very foundational works of the fantasy genre, in the early 20th century, this idea of "before and after", or of "cyclical magic" is there.
Take Jack Vance. He mainly did two fantasy series which seem to be part of two very different continuities. His "Dying Earth" series, which named the entire "dying earth" genre the same way his magic ideas named the "Vancian magic" trope popularized by D&D. And his Lyoness series, which is Vance doing a fantasy take on Arthurian material and old European fairytales. One set in the distant future of the planet where the sun is dying and civilizations collapsed, another set in the time of the realms of Logres and before the Holy Grail was found, back when fairies still walked the earth... Yet, when you read both series, you realize that they are meant (or strongly implied) to be set in the same continuity or universe, as the magic system and various fantastical elements are shared in an obvious way.
And before Jack Vance, there was Clark Ashton Smith. Where Vance remained implicit and discreet, mostly dropping connecting elements as Easter eggs for faithful readers, Smith went full on explicit. Because when you read his famous "dying earth" unofficial series (a "dying earth" series from before Vance's own Dying Earth), the dark fantasy/Orientalist Gothic "Zothique", it is said that this world is a fantasy one because the end of time and the death of the planet allowed for magic, gods and demons to return... Those of "Mu, Poseidonis and Hyperborea". Which are some of his other fantasy settings - from a mythical Antiquity (Poseidonis is part of Atlantis) to a Prehistoric fantasy (Hyperborea is fantasy adventures by the time of the saber-toothed tigers and mammoths).
It is really fascinating how instinctively it used to be woven in fantasy that "the end will be like the beginning" or "as before, so after".
I know Champions (the RPG) sort-of did something similar by painting the "fantasy worlds" as being part of the distant pre-history of our Earth, with magic powerful and omnipresent in the beginning and slowly fading away, from mythical/high fantasy to low-fantasy sword-and-sorcery (matching the ideas that Conan the Barbarian or The Lord of the Rings simply happened in a distant past of our actual Earth), before the age of magic ending replaced by a rise and development of technology... And then magic returning - but with the twist that magic returned before it should have, as magic should have returned once technology faded away and instead it was forcefully summoned back into the world - and magic+ technology fusion resulted in the Age of Super-Heroes. But this actually deviates towards a very different topic - whether super-heroes can fit into a fantasy setting or not...















