How did Spider-Man become Spider-Man?

Answer:
He was bitten by a radioactive spider and it altered his DNA giving him spider-like abilities where he could crawl on walls, jump extremely high, and use spider-sense. Shooting webs from his arms was his own creation.
First answer by ID3515163970. Last edit by JLC31383. Contributor trust: 28 [recommend contributor recommended]. Question popularity: 3 [recommend question].