Superman came to earth as a baby, still in a
birthing matrix. (Meaning he actually wasn't "born" yet.) His parents sent him
to earth as the only survivor of their planet, Krypton, which exploded. (Due to
disturbances within the palnet's core.) Upon crashing to the earth, in Smallville, Kansas,
his birthing matrix opened and he was found by Martha and Jonathan Kent, a couple who was
unable to have children of their, naturally. They raised him as if he were their real son.
They didn't know he was from another world, they thought he was part of a space
experiment. As he grew, he started to develop strange abilities (due to exposure to the
earth's yellow sun, and his Kryptonian body). At 18, he found out he could fly, and also
realized that he had been given his powers for a reason, and that he should help people.
(Instilled in him because of his parent's, the Kents, teachings and guidance.) He left
Smallville after high school and traveled abroad. He used his powers in secret for many
years, until one day he had to save a space-plane that was crashing right after take-off,
in front of a crowd of spectators watching the launch. On board was investigative
reporter, Lois Lane. She was mesmerized by him from this moment on. After he landed the
plane, he was mobbed by people who wanted him to perform miracles for them. This
experience really changed his life, so he decided that he needed some way to be able to
live a normal life and use his powers to help others. So he, with the help of his mother
and father, came up with the costume, Lois Lane supplied the name: Superman. Lois got the
interview of the century, but so did budding reporter, Clark Kent. Clark got to the
Daily Planet with the interview before Lois, and got hired. Lois, who was already working
for the planet, was furious. Especially when editor Perry White made them partners.
Because of being "out-scooped", Lois had a lot of hostility towards Clark. But
eventually love took ahold, and the rest is (recent) history.