The First Avengers:
Whilst the team, also referred to as "Earth's Mightiest Heroes", is known for having a rotating roster, the original Avengers team was made up of the following five members:
1.Iron Man/Tony Stark
4.Wasp/Janet Van Dyne
The Avengers discovered Captain America who had been frozen in ice since just before the end of World War II.
Captain America joined the Avengers and would later go on to lead the team.
-- The Avengers