The Avengers originated in Marvel Comics. Marvel has developed a vast universe of characters and storylines, and the Avengers are a key part of it. Their adventures have been adapted into various forms of media, including movies and TV shows.
The story length of Marvel Avengers can vary depending on how you engage with it. If you're just considering the main plotlines in the comics or movies, it could be several hours. But if you include all the related side stories and expanded universe content, it's a much longer commitment.
No, Captain Marvel isn't typically considered the leader of the Avengers in comics. The leadership role often changes among various characters depending on the storylines and events.
The story of Marvel Avengers is quite lengthy. It encompasses multiple comic book series, movies, and related media. The overall narrative has been evolving for decades.
There are a lot of Marvel Avengers comics. The count is constantly changing as new ones come out. But suffice it to say, it's a large number that would take a while to count and keep track of.