comic books superheroes! where did they all begin? Why, with superman, of course! Although there have been many other superheroes since then,he remains a unique character. Two teenagers first created him in 1933, and he became a public figure in 1938. what is the main idea
The main idea is Superman. Even though the passage starts with "Comic books superheroes!" It specifically mentions Superman in the thesis and goes on to explain where the man of steel came from. :)