Warning: SPOILERS for Eternals!
All the main characters in Eternals were essential to the development of human society in the MCU, but Phastos was by far the most influential Eternal for the Earth, and especially, for the Avengers. Before Eternals, the Marvel Cinematic Universe had featured a fictional version of Earth with almost the same history as its real-life counterpart. The biggest differences used to date back to World War II with the rise of HYDRA and the creation of the Super
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