While there are some elements of the story that could be considered "inspired by" real-world events or concepts, such as the environmental themes and the conflict between humans and nature, the overall narrative is entirely original.
Here's what inspired the Avatar story:
* Indigenous cultures: Cameron has acknowledged that he was inspired by the cultures of indigenous peoples around the world, particularly their relationship with nature.
* Environmentalism: The film explores themes of environmental destruction and the importance of protecting the natural world.
* Science fiction: Cameron has a long history of creating sci-fi films, and Avatar draws upon elements of classic science fiction, such as the exploration of other planets and the concept of advanced technology.
However, Avatar is ultimately a product of Cameron's imagination, and it's not based on any specific historical events or real-life experiences.