1st appearance of Sun Boy, a solar-powered member of the Legion of Super-Heroes
1st appearance of Phantom Girl, a member of the Legion of Super-Heroes who has the ability to phase through objects
1st appearance of Triplicate Girl, a member of the Legion of Super-Heroes who can split into three identical bodies
1st appearance of Bouncing Boy, a density-changing member of the Legion of Super-Heroes
1st appearance of Shrinking Violet, a member of the Legion of Super-Heroes who can shrink to sub-atomic size
1st appearance of Braniac 5, a genius and time-traveling member of the Legion of Super-Heroes
Supergirl joins the Legion of Super-Heroes
