There are many heros in the Marvel Universe. This website can breifly tell some of famous heros.
Iron Man

The real name of Iron Man is Anthony Edward "Tony" stark. He was born in Long Island, New York, U.S.A. His parents were killed at his young age. He inherited his father's possession. He is the president emeritus of Stark Industrial, founder of Maria Stark Foundation.
Major issues of Iron Man

- Red and gold armor debuted (Tales of Suspense #48, 1963)
- Traveled to Camelot with Dr. Doom (Iron Man #149-150, 1981)
- Succumbed to alcoholism (Iron Man #167-182, 1983-1984)
- Jim Rhodes became Iron Man (Iron Man #169-199, 1983-1985)
- Tony Stark returned as Iron Man in red & silver armor (Iron Man #200, 1985)
- Fought [[Armor Wars]] against armored villains (Iron Man #225-231, 1987-1988)
- Traveled to Camelot again with Doom (Iron Man #249-250, 1989)
- Manipulated by Kearson DeWitt in "Armor Wars II" (Iron Man #258-266, 1990 -1991)
- James Rhodes took over as Iron Man (Iron Man #284, 1992)
- Tony Stark became Iron Man again (Iron Man #289, 1993)
- Helped form Force Works (Force Works #1, 1994)
- Time traveled with Dr. Doom (Iron Man #11, 1997)
- Returned from Counter-Earth (Iron Man #1, 1998)
- Revealed as member of Hell Fire Club (X-Men #73, 1998)
- Armor became sentient, killed Whiplash (Iron Man #26-30, 2000)
- Ultron took control of armor (Iron Man #46-49, 2001-2002);
- Became Secretary of Defense (Iron Man #73-78, 2003)
- Infiltrated the Thunderbolts as Cobalt Man (Avengers/Thunderbolts #1-6, 2004)
- Helped form new group of Avengers (New Avengers #1, 2005)
- Became Director of S.H.I.E.L.D. (Civil War #7, 2007)