Avengers (1998) #71
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Earth's Mightiest Heroes joined forces to take on threats that were too big for any one hero to tackle. With a roster that has included Captain America, Iron Man, Ant-Man, Hulk, Thor, Wasp and dozens more over the years, the Avengers have come to be regarded as Earth's No. 1 team.
When Janet Van Dyne's father died, she convinced her father's associate Hank Pym to give her a supply of "Pym particles"; Pym also subjected her to a procedure which granted her the ability to, upon shrinking, grow wings and fire blasts of energy, which she called her "wasp's stings."
David Cannon was always a bully, so his mutant abilities naturally led him to a life of crime and petty thievery, until his constant defeat at the hands of the Hank Pym and the Wasp led him to create the Whirlwind identity.
After brilliant scientist Henry Pym discovered a process in which he could manipulate a newly discovered group of subatomic particles through magnetic fields, he tested the serums on himself and accidentally shrunk himself to the size of an ant.