Superman #61 1991

Superman #61, published by DC in 1949, is a landmark Golden Age issue. Its story, "Superman Returns to Krypton!", retells the hero's origin, marking the first time Superman learns he is an alien. This issue also notably introduces Kryptonite to comic books, a pivotal element in the Superman mythos. Additionally, it features Superman's first return to his home planet and his first encounter with his biological parents since infancy. This issue is highly significant for establishing core aspects of the character's enduring lore.