Originally posted by Classicalla: According to the Superman Homepage, his birthday has traditionally been February 29th (or 28th).
This would explain why he never seems to age. Only having a birthday once every 4 years.
VirginiaR. "On the long road, take small steps." -- Jor-el, "The Foundling" --- "clearly there is a lack of understanding between those two... he speaks Lunkheadanian and she Stubbornanian" -- chelo.