Today In Marvel History, the elusive Black Widow made her first appearance in "Tales of Suspense" #52 in 1964.

Today In Marvel History in 1991, the 'Weapon X' story arc began on the pages of "Marvel Comics Presents" #72.

Today In Marvel History in 1964, Matt Murdock becomes street-level hero Daredevil- lawyer by day, vigilante by night!

Today In Marvel History in 1992, the bloodthirsty Carnage made his first full appearance in "The Amazing Spider-Man" #361.

Today In Marvel History in 1972, we meet the unbreakable Luke Cage in "Luke Cage, Hero for Hire" #1!

On April 9th, 1963, Doctor Strange transports himself to the Marvel Universe in "Strange Tales" #110.

Today In Marvel History in 2003, we meet an eclectic group of remarkable L. A. teens in "Runaways" #1.

Today In Marvel History in 1965, we’re introduced to mysterious counter-terrorist organization S.H.I.E.L.D. in "Strange Tales" #135.

Today In Marvel History May 21st, 1991, Thanos SNAPS in "Infinity Gauntlet" #1.

Today In Marvel History in 1962, Spider-Man swings into the Marvel Universe in "Amazing Fantasy" #15!

Today In Marvel History in 1991, mutantdom’s most militant and combative hero squad - X-Force - set out on their first mission in "X-Force" #1.

Today In Marvel History I’m 1963, Earth’s Mightiest Heroes join forces for the first time in "Avengers" #1.

Today In Marvel History in 1971, the Defenders face off against their first great for in "Marvel Feature" #1.

Today In Marvel History in 1961, the Fantastic Four becomes Marvel’s first family, committed to defending the Earth from doom.

Today in 1939, Timely Comics publishes MARVEL COMICS #1, paving the way for the entire Marvel Universe as we know it.

Today In Marvel History in 2005, Wanda Maximoff, aka Scarlet Witch, kicks off the House of M by uttering three words that shake the X-Men to their core: No More Mutants.

Today In Marvel History in 1976, Carol Danvers emerged as a powerful new Super Hero in "Ms. Marvel" #1.

Today In Marvel History in 1968, the original Guardians Of The Galaxy join forces for the first time in MARVEL SUPER-HEROES #18!

Today in 1979, LA lawyer Jennifer Walters gets an emergency blood transfusion from her cousin Bruce Banner, causing her to transform into SHE-HULK for the first time!

Today In Marvel History in 1965, the Fantastic Four face off against Galactus and the Silver Surfer for the first time in " Fantastic Four" #48.

Today In Marvel History in 1940, Joe Simon and Jack Kirby introduced the world to our favorite star-spangled hero, Captain America.