As seen in Avengers (Vol 1) #57.
*Origin of the Vision
Floating eerily through a wall on a stormy night, the Vision first appeared when he attacked the glamorous Avenger known as the Wasp, only to collapse in mysterious convulsions. Later, under examination by the heroine's teammates (Goliath, Black Panther and Hawkeye), the synthazoid revived, renewed his attack, than overcame the evil programming planted by Ultron 5. He proved his heroism by helping the Avengers locate and defeat their arch for. *Source: back of Card