Through the Marvel Multiverse, there is one Falcon ‘standard’, from Earth 616:
“Sam Wilson grew up in a tough Harlem neighborhood. His father, a minister, had been killed trying to stop a fight. Sam did his best to try and do the right thing, but his grief and anger eventually led him down a criminal path. He took on the name of “Snap” Wilson while working for the mob.”
“After an assignment, on the way to Rio de Janeiro, Sam’s plane crashed on a remote Caribbean island named Exile where the Red Skull and his henchmen were hiding out. The Red Skull sought to use Wilson as a pawn to attack Captain America (who was currently on the island) with. He used the Cosmic Cube to revert ‘Snap’ into Sam, and give him the ability to telepathically communicate with birds, especially a bird that Wilson had bought named Redwing. After their initial skirmish, Cap was able to shake Wilson of the Skull’s programming. Together they defeated the Skull, and the Falcon became Cap’s partner for a long time. The Falcon ultimately left as Cap’s partner when he was named the leader of the SHIELD Super-Agents.”
From the Marvel Wikipedia
Avengers Assemble is a TV cartoon series that takes place in Earth-TRN123 The following is an excerpt from Falcon’s entry in the Marvel Wikipedia:
“Sam Wilson was recruited into S.H.I.E.L.D. and was one of the best recruits in the S.H.I.E.L.D. Training Program. He worked secretly with Tony Stark aka Iron Man, who took him under his wing. He had access to the Hall of Armor and was welcome to use the equipment in a time of crisis.”
From the Marvel Wikipedia