Centuries ago on the world known as Earth-One, an Amazonian known as Diana perished in battle alongside her sister Hippolyta. Just prior to this, she was able to project her mental energies into space which gravitated in a meteorite composed of silver from which she formed a cybernetic body as Astarte. Eventually finding her way back to her homeworld, she discovered another Diana... aka Wonder Woman... whom she thought was a usurper. When confronting her and her mother, she learned that this was her niece. Finally, shutting down her robotic form, she went to sleep.
Centuries ago on the world of Earth-Two, the Amazonian queen Hippolyte discovered an orphaned girl named Astra. Although unable to raise her at that time, she brought her and other young females to a planet known as Infanta wherein they formed a small civilization protected from the harmful influence of mankind. Eventually, Astra and her ladies returned to their native world to assist her former guardian and Hippolyte's daughter Wonder Woman against hostile alien forces.