History MythologyGag / AvengersEndgame

* Hawkeye has become the DarkerAndEdgier vigilante Ronin after losing his family when Thanos wiped out half of the universe's population. This mirrors the events of ''ComicBook/TheUltimates 3'', where Hawkeye donned a new costume and adopted a more violent, [[DeathSeeker suicidal]] attitude after his family was murdered in ''The Ultimates 2''. It also refers to the 616 version taking on the Ronin identity post-''Comicbook/CivilWar''.

* The finale has Thor DualWielding two hammers, similar to the climax of Jason Aaron's ''The God Butcher/Godbomb'' story where Thor dual wields the hammers of his present and future self's at the same time. It also recalls the scene from ''ComicBook/JonathanHickmansAvengers'' where the Unworthy Thor used both his axe and an alternate Mjölnir that previously belonged to a MirrorUniverse version of Thor during the battle against the Beyonders.

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* Carol's new look after the time skip is this on two counts. Her short hair has been carried over from her modern design, as has the red sash she wears as a belt. Her new red costume with black shoulder-pads is lifted directly from ComicBook/CaptainMarVell's, Carol's predecessor.

* Banner managing to join his consciousness to the Hulk's bodies has happened multiple times in the comics, most notably with the "Merged/Professor Hulk" incarnation from Creator/PeterDavid's run.

* Iron Man's Mark 85 armor resembles a somewhat modernized but otherwise completely accurate recreation of his classic Mark 2 Armor (the first red and gold one) in the comics, while Cap's new suit finally incorporates the classic leafmail design of his comics outfit. The Mark 85 armor also has a built-in energy shield that resembles the one Iron Man has in the ''VideoGame/MarvelVsCapcom'' video games.

* Captain America's present suit includes a leafmail pattern on his chest and shoulders, based on the leafmail costume he wore for a while.

While the Russos have stated that this movie will not be adapting any particular comic storyline, there are a lot of nods to certain stories and events in the Marvel Comics history:

* Captain America says "Hail HYDRA." in the film. The difference here is that he's masquerading as a HYDRA operative to get what he needs, instead of being an actual HYDRA agent like he was in ''ComicBook/SecretEmpire''.

* During the final battle, Thanos spins his double-bladed sword in front of himself like the rotor blade of a helicopter, referencing his "Thanoscopter" from the ''Spidey Super-Stories'' comic.

* One of the more subtle allusions to not just the Marvel Universe, but the nature of long-standing fictional universes as a whole, was the clever nod of the [[ComicBookTime Sliding Timescale.]] Given how everyone decimated by the Snap was brought back to the present day, which was five years into their future, it all makes them legally five years older than they are biologically, much in the same vein that comic-book characters do not age relative to the timeline, like how Peter Parker has been in his mid-to-late twenties for the last few decades. By having those who had been decimated be five years younger than they should be, it acknowledges that aspect of the comics.

* One of the more subtle allusions to not just the Marvel Universe, but the nature of long-standing fictional universes as a whole, was the clever adaptation of the [[ComicBookTime Sliding Timescale.]] Given how everyone decimated by the Snap was brought back to the present day, which was five years into their future, it all makes them legally five years older than they are biologically, much in the same vein that comic-book characters do not age relative to the timeline, like how Peter Parker has been in his mid-to-late twenties for the last few decades.