is the bald Lex Luthor. The Silver Age Superman was typically characterized as being more grounded in reality than previous depictions, in that he was portrayed with a realistic appearance and embedded within logical and rationalistic narratives. While these were still based on the science fiction of his earlier iterations, Superman was portrayed in storylines that sought to uncover the mysteries of the world through observation and the use of evidence, including the concept of limits and the consequences of human action. This definition is attributed to Curt Swan, who was the principal artist of Superman comics from 1955 to 1985. Swan's extensive work on the character, which was responsible for much of the public perception of the superhero, emphasized anatomical realism, embedding in the character a sense of Norman Rockwellesque Americana. This depiction of the superhero resonated with the readers as indicated in the way some observers saw their own lived experiences in his stories. Bronze Age 1971-1986 In 1971, Dennis O'Neil and Julius Schwartz set out to simplify Superman's overelaborate framework. They streamlined the Superman mythos by downsizing his abilities and reducing his power levels. This version only lasted a few issues. DC attempted more of a soft reboot in the 45th Anniversary issue of Action Comics. Lex Luthor and Brainiac were updated and modernized to make them more visibly dangerous for Superman. The Silver/Bronze Age (Earth-One) Superman was given a send-off in the Alan Moore-penned "imaginary story" Whatever Happened to the Man of Tomorrow? (1986). Colloquially known as "The Last Superman Story", it was a literal conclusive ending to Superman's story as a character. The story was originally conceived by senior editor Julius Schwartz, who designed a triumphant goodbye for the flagship hero in his final two Superman issues (prior to the John Byrne The Man of Steel relaunch) - Superman (vol. 1) #423 and Action Comics (vol. 1) #583 (1986). Both comics were illustrated by the long-tenured, mainstay Superman artist Curt Swan. Other Pre-Crisis versions Before Crisis, the Multiverse was also used to explain an "evil" version of Superman from Earth-Three as well as other versions that officially existed. Earth-95 had Jor-El rescue his entire family. Earth-149 saw Lex Luthor succeed in killing Superman.: Earth-Prime was designated as the "real" world, even though Superboy-Prime is from that universe. This version of Clark Kent is from a world without other superpowered beings, where he grows to adolescence