"RETroactive CONtinuity", in addition to what the sibling comment said. The Wikipedia top example is Sherlock Holmes dying in a fight with Moriarty and then co

"RETroactive CONtinuity", in addition to what the sibling comment said. The Wikipedia top example is Sherlock Holmes dying in a fight with Moriarty and then coming back later when the author relented and decided to write more stories. https://en.wikipedia.org/wiki/Retroactive_continuity https://en.wikipedia.org/wiki/Retroactive_continuity