You have seen him on TV and at the movies.  You have cheered when he triumphed and cried as he walks alone on the highway hunted and pursued by those who misunderstand him.  What you don't know is how he came to be and how he has changed over the years.  He is the strongest there is, just ask him.

"And there came a day, a day unlike any other, when Earth's mightiest heroes and heroines found themselves united against a common threat. On that day, the Avengers were born—to fight the foes no single super hero could withstand! Through the years, their roster has prospered, changing many times, their glory has never been denied! Heed the call, then—for now, the Avengers Assemble!"

—Prologue from The Avengers used in the 1970s