In the two recent films The Avengers/Avengers Assemble and Avengers: Age of Ultron, we see the following people make up the The Avengers team:
- Iron Man
- Captain America
- Black Widow
From the little I know of the comic book history, I am aware that the line-up has changed frequently over the years. My question is, was the line-up seen in the films specifically created for them, or did this Avengers team ever appear in the comics?