I've seen it several places, especially with Norse mythology. An undeniably advanced society, far in the future or otherwise, with at the very least gods named after those of ancient religions. Examples: Creeper World has Odin City, and in both games there are phrases like "Odin preserve us" etc. Tales of Phantasia has the ancient super-advanced countries of Thor, Odin, and Freya, named after the gods they worshiped.
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