In the Silver Age, Wonder Woman's history received several changes. Her earlier origin, which had significant ties to World War II, was changed and her powers were shown to be the product of the gods' blessings, corresponding to her epithet, "beautiful as Aphrodite, wise as Athena, stronger than Hercules, and swifter than Hermes". The concepts of Wonder Girl and Wonder Tot were also introduced during this period.
Steve Trevor's secretary who befriends Diana. Describing her character, Davis said, "She's a woman in a man's world and so being heard and seen aren't the easiest things, but it kind of doesn't deter her", adding, "Etta is unapologetically herself and I think that that's the thing that has drawn me to her the most". When asked if she was previously familiar with the character, Davis responded, "No. I wasn't. It took me a while to know that I was auditioning for Etta because even when I found out it was Wonder Woman, I still had no idea what the role was. It took a little while then I Googled the character". On Etta Candy's relationship with Steve Trevor, Davis said, "One of the great things that Etta gets to work with Steve Trevor is because Steve is not your typical man, in that he does entrust her with things that in 1918 probably wouldn't have been entrusted to a secretary of somebody who is quite important", further explaining, "So I think that [Trevor] needs her just as much as she needs that because now she's been given responsibility that she wouldn't have normally be given before, and equally he has somebody who could probably fly under the radar a bit. So he can trust the person who no one's really looking at".
DC Comics Executive Editor Dan DiDio asked fans for 600 postcards to restore the Wonder Woman comic book to the original numbering, starting at #600. The publisher's office had received 712 postcards by the October 31, 2009 deadline. As a result, the numbering switched to #600 after Wonder Woman #44, in an anniversary issue. Issue #600 featured several stories featuring work from guest creators such as Geoff Johns, George Pérez, Phil Jimenez, and Amanda Conner. The issue featured guest appearances from other female superheroes such as Batwoman, Power Girl, Batgirl, Stargirl and the Question.
It was later retconned by Gail Simone that Wonder Woman's outfit design had Amazonian roots. During a flashback in Vol. 3, Hippolyta is shown issuing orders to have a garment created for Diana, taking inspiration from the skies on the night Diana was born; a red hunter's moon and a field of stars against deep blue, and the eagle breastplate being a symbol of Athena's avian representations.[volume & issue needed]