When Joe Simon and Jack Kirby created Captain America in 1941, they probably did not imagine the multi-billion dollar franchise he would become. Cap all but disappeared in the 1950s, nearly fading into the permanent fog of obscurity. The Avengers #4 changed all that for good in 1964. Stan Lee and Jack Kirby brought Captain America from the days of World War II into the ranks of the Avengers. Let’s check out this piece of comic book history!