Superman was born Kal-El of House of El on the planet Krypton. As an infant, he was rocketed to Earth by his father Jor-El, just a few moments before their planet was destroyed. The baby was discovered by a ordinary farmer and his wife. They adopted him and raised as their own son under the name of Clark Kent.

Even when the boy started to display his various superhuman abilities, his foster family didn't give up him. Clark was raised by wise and kind people. No wonder he decided to use his powers for the benefit of humanity, through a secret "Superman" identity.

More Info: