3. She has a sister named Nubia
Hippolyta’s artistic bent didn’t stop with Diana, however. At some point, she decided to pick up some “dark clay” and created yet another daughter. However, Ares, the god of war, saw fit to bring discord into Hippolyta’s domestic life. He took the newest baby and spirited her away to an unknown location. He intends to use this new being as an agent of destruction against the Amazons.
Hippolyta would not see this second daughter for many years, until Nubia was an adult herself. Diana, meanwhile, did not know she even had a similarly clay-based sister until she encountered Nubia in combat. Though the two argue as to who, exactly, carries the title of “Wonder Woman”, Nubia lets Diana go.
Later on, however, she launches an attack from “Slaughter Island”, with the support of Mars. Thankfully, Diana removes a particular ring from Nubia’s finger, breaking the mind-control hold Mars has over her sister. The two team up and save the day, naturally. Nubia would later return here and there, though she rarely got to go on her own adventures without Diana.
If you’ve been paying attention, then you may have already guessed that Nubia is a woman of color. Even in light of the growing progressive consciousness on the 1970s, giving Wonder Woman a black sister was a major step.
Later comics published in the 2000s reintroduced her as Nu’Bia, a character unrelated to Diana. She also would have appeared in the 1970s Wonder Woman television series, but was scrapped when the show moved to CBS in 1977, though a doll does exist.