Source: Superman vol.1 #106 (1946)
Type: The real deal (since retconned)Superboy Month ends today, so we're going back, way back, in time to Kal-El's VERY FIRST adventure. Before the Boy of Steel, you might argue even before the Babe of Steel. Bet you didn't know Kal-El's rocket took a detour on its way to Earth. Now, the story can be told (and by "now", I mean 1946)!
In the original telling, the rocket wasn't so much a gestating chamber, but an actual spacecraft, and Baby Kal-El could already walk and talk (albeit with a limited vocabulary). So there he is in his rocket, playing with his toys, when he's distracted by what always seems to distract Super-Baby: Shiny things. He pushes the rocket's door opens and flies to a golden meteor where the shiny thing is revealed to be a crystal mantis. Ladies and gentlemen, Superman's first fight:
Drawn back to the rocket by his toys, the craft then brought him to Earth and rest, as they say, is history!
Bonus: Astronomers can now reveal that by pushing off the meteor, Super-Baby changed its trajectory away from Metropolis, making it the first time Superman ever saved the city!