What year did the idea of Kryptonite, and its harmful effects on Superman, first appear in Superman stories?

In the time leading to Kal's birth, Jor-El made preparations to save his son, developing a specialized pod to deliver him to Earth, located many light years ... A new publisher, DC Comics, had used other works by Siegel and Shuster, so they weren't exactly unknown. When the publisher's new magazine “Action Comics” was ... In addition, Kal-El is the first Kryptonian of natural birth in centuries, the host of the Growth Codex, and a member of the Justice League. When Kal-El's ... Oct 26, 2020 ... A tiny preemie baby the size of a superman doll, Logan Ray, poses with the same toy in photos every passing year to show how much he's ... Jul 12, 2013 ... Nova Herculis — the cataclysmic explosion in the constellation Hercules that captivated the public for several years during the mid-1930s — ... Sep 20, 2014 ... ... Superman When His Mother Needed Him?” The man who portrayed Superman during the 1950s was born George Keefer Brewer in 1914 in Woodstock, Iowa. Apr 14, 2024 ... If we're going by the pre-Crisis Earth-Two version, then Clark would be 108 years old, since he's born in Krypton on Leap Year 1916. If we're ... Aug 8, 2024 ... But it's the remarkable genetics of Superman, born June 28, that made him a standout — and piqued the interest of Kleiss. THE BULL OF ALL BULLS. These powers come from his alien background; he was born on the planet Krypton. His birth parents sent him to Earth when they realized their planet was in ... In 1933, two Glenville High School students in Cleveland, Ohio created the very first comic book superhero. His name was Superman - the Man of Steel, Champion ...