Superman, also known as Kal-L, is the Earth-Two version of Superman. His life is nearly identical, with several differences in his history and personality.
Powers and Abilities
The same as a normal Kryptonian; however, for much of his adult life, his power level was lower than the mainstream Superman. In the beginning (1940s), he was unable to fly, and could only leap an eighth of a mile; he was invulnerable, but a bursting shell could pierce his skin; and he could only run at 50 miles per hour, more or less. In 1969, he was a lot more powerful, and had a power level equal to Kal-El (a fight between the two ended in double k.o.)(Justice League of America v1 #73).
Behind the Scenes
This is intended to be the Golden Age version of the character. That is, this character comes from a direct continuation of the continuity from the golden age Superman comics.