Steve Rogers, aka Captain America, has a lot of years under his belt by the end of Marvel's Avengers: Endgame. We calculated just how old he really is.

Brave New World perfectly set up Sam Wilson to lead the new Avengers team, and he could choose these clear candidates for the roster.

Another reason The First Avenger stands out from the rest of the Marvel Cinematic Universe is that, even though it ends by reminding us that Steve has awoken in the modern day, its final note is melancholic instead of triumphant. After Steve sacrifices himself and buries the Tesseract along with him, he wakes up 70 years later in an alien world.