Issue #600 introduced Wonder Woman to an alternate timeline created by the Gods in which Themyscira had been destroyed and the Amazons scattered around the world. In this timeline, Diana is an orphan raised in New York who is learning to cope with her powers. The entire world has forgotten Wonder Woman's existence and the main story of this run was of Diana trying to restore reality even though she does not properly remember it herself. Diana has no memories of her prior adventures as Wonder Woman, recollecting her memories in bits and pieces and receiving different abilities and resources (such as the power of flight and her lasso) during the progression of her adventure. A trio of Death Goddesses called The Morrigan acted as Wonder Woman's main enemies. Diana ultimately defeats the evil goddesses and returns everything back to normal.
This new era of the comic book was influenced by the British television series The Avengers, with Wonder Woman in the role of Emma Peel. With Diana Prince running a boutique, fighting crime, and acting in concert with private detective allies Tim Trench and Jonny Double, the character resembled the Golden Age Black Canary. Soon after the launch of the "new" Wonder Woman, the editors severed all connections to her old life, most notably by killing Steve Trevor.
Trevor was taken to be interrogated using the Lasso of Hestia. Though he tried to resist the lasso's power at first, unwilling to reveal military secrets, he nonetheless was powerless to withstand it and admitted that he was a spy. He told them that he'd been on a mission to observe General Ludendorff and Doctor Poison, that he'd stolen the latter's research notebook, and that his escape had brought himself and the Germans to Themyscira. He described the Great War, informing them that millions of people had died. Hearing this, Diana deduced that only Ares could be behind a war of that magnitude. She tried to persuade Hippolyta to send the Amazons back with him to face the god, but her mother refused, much to Diana's confusion.
Receiving a signal from Chief, she infiltrates Ludendorff's base. She and General Ludendorff fight each other where Diana kills him. Thinking that killing Ludendorff would solve the problem, she gets confused when she sees the German soldiers loading the weapons onto the planes thinking that humankind is corrupted and it doesn't deserve her help.
“Of course I wouldn’t expect Miss Roubicek to understand all this,” Marston wrote Gaines. “After all I have devoted my entire life to working out psychological principles. Miss R. has been in comics only 6 months or so, hasn’t she? And never in psychology.” But “the secret of woman’s allure,” he told Gaines, is that “women enjoy submission—being bound.”
Perhaps due to her Amazonian background, Diana greatly respects other noble selfless warriors, as evidenced when she attended Superman's funeral in Smallville and spoke of how he had been much more than a soldier (adding to what Batman said about Metropolis burying an empty casket). As a result of her great posthumous respect, she was, therefore, more than willing to aid Batman in honoring the heroic death of Superman, by helping round up the metahumans from Lex Luthor's files to form a team of superheroes (later known as the Justice League) to protect the world from the imminent mysterious alien invader Steppenwolf and his Parademon minions after Superman's death left the world vulnerable.
Omnilingualism: Wonder Woman, as an Amazon, has the ability to fluently speak, read, and understand all human languages (even currently dead ones, which allows her to surpass even a polyglot like Sameer), as well as to instinctively identify a language's name when seeing its written form (doing so when seeing Dr. Poison's notes on hydrogen-based mustard gas). Wonder Woman has so far been known to speak or read English (albeit with a mild Middle Eastern accent), French, German, Spanish, Italian, Russian, Mandarin, Chinese, Sumerian, Ancient Greek, Latin, Ottoman Turkish, and Blackfoot, thus making her the most polyglottic member of the Justice League.
In 1954, Dr. Fredric Wertham alleged that there were lesbian subtexts to Wonder Woman and claimed comics contributed to juvenile delinquency in his book Seduction of the Innocent where despite a very obvious heterosexual relationship with Steve Trevor, Wertham asserted that Wonder Woman’s association with the Holliday Girls could be interpreted as a lesbian relationship. The Comics Code Authority was then introduced in reaction to Wertham 's claims against the entire industry.