What are the characteristics of a superhero?

The most important characteristic of a superhero is absurdity. He is a mixture between black and white, the whole and the part, and the vague and the clear. Being a superhero means dazzling others, but here is another question: How should he dazzle them?  The superhero should not be strong because, in the words of Montesquieu, strength leads to abuse of power.

Who is the first superhero?

Super hero

The first model for a superhero was Superman, which appeared in 1938, and after that, superhero stories - from short, episodic adventures to continuing epic stories over the years - dominated most American comic books and then spread to other media.