It is still a big question of sorts whether the Marvel Cinematic Universe (MCU) is Earth-616, the same as Marvel Comics' ...

Bucky Barnes took up the mantle of Captain America after Steve Rogers' death, proving to be a worthy leader with his dark past and honor. Despite various powerful versions, the original Earth-616 ...

While we wait for Brave New World to hit theaters and see how the new Cap deals with the superhero life years after Endgame, ...

will be featured in Captain America: Brave New World, which will be set (at least predominantly) on Earth-616. Given this, viewers are likely to wonder how adamantium will compare to vibranium ...

an evil incarnation of Captain America in the comics. A Hydra sleeper agent, he impersonates the mainstream, Earth-616 Steve in 2017’s Secret Empire crossover event and its various tie-ins.

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Here's what you need to know to keep the Your Friendly Neighborhood Spider-Man canon straight -- and how it lines up with the MCU.