701 BCE - Hippolyta is born in ancient Greece.
682 BCE - 19-year-old Hippolyta marries an elite hunter.
678 BCE - 23-year-old Hippolyta's husband is injured & becomes abusive.
675 BCE - 26-year-old Hippolyta is pregnant when her husband kills her. Her soul, along with the souls of her unborn daughters, are kept safe within the Well of Souls.
580 BCE - Hippolyta is given life by the goddesses, and made the queen of the Amazons.
577 BCE - Hippolyta falls in love with Ares.
576 BCE - Hippolyta is betrayed by Ares, who tricks Hercules in to making war on the Amazons and raping Hippolyta. They are taken as slaves, but freed from their chains by the Goddesses in exchange for their pledge not to seek vengeance. The Amazons attacked their captors despite their vow, & Antiope, Hippolyta's sister, leads a small army of Amazons against Athens, which the gods turn to stone. Hippolyta's remaining Amazons are granted a new island home, but are tasked with protecting Doom's Doorway.
1939 - Steve Trevor crashes on Themyscera. Hippolyta leaves the island to bring him home, falling in love with him during the journey, and assisting him on his missions against the Nazis. Away from Themyscera, she begins to age.
1941 - 29-year-old Hippolyta joins the Justice Society as Wonder Woman when it is formed after the attack on Pearl Harbor.
1945 - 33-year-old Hippolyta returns to Themyscera at the end of the War.
32 years ago - When Hippolyta beseeches the goddesses for a daughter, they instruct her to form a daughter from the clay, and they grant her life and power, giving her the lost soul of Hippolyta's unborn child. She names her Diana.
26 years ago - Hippolyta grants Diana an enchanted mirror that gives her a playmate named Donna, not knowing that the girl in the mirror would be granted the soul of her unknown second daughter.
22 years ago - Hippolyta summons the Amazons to defend Themyscera when Dooms Doorway is opened. Diana tries to close the door herself but is not strong enough until she is assisted by her mirror-sister Donna. Donna is welcomed by the Amazons, and Hippolyta takes her in as a daughter.
12 years ago - When Circe is awakened, Ares leverages the armies of man against her. To stop the impending war, Hippolyta chooses to send out a champion, but forbids Diana from competing. When she wins in disguise, she takes her mother's mantle as Wonder Woman, defeating Ares but choosing to stay man's world.
11 years ago - Hippolyta, not approving of Donna's journey of discovering but understanding, grants Donna Troy her own magically enhanced Lasso.
10 years ago - Hippolyta is forced to exile Diana Prince when she leads Barry Allen and Hal Jordan to Themyscera to stop Felix Faust from siphoning the magic from the island.
6 years ago - Themescera is attacked by the lost tribe of Amazons, turned to stone in their attack on Greece and taken by Ares, finally given life again and used to attack their home. Diana Prince saves them, and earns her place among them again, while Antiope and her soldiers rejoin the Amazons.
5 years ago - Plagued by visions of Diana Prince's death, Hippolyta stages a new tournament to select a new champion, and sabotages Diana so that Artemis wins the mantle of Champion. This inadvertently brings about Diana Prince's death at the hands of Ares, and Hippolyta sacrifices her life to free her from the underworld.
Wonder Woman's mother is an incredibly important character, in a lot of surprising ways. The narrative scope of her role as the matriarch of an entire society of women obviously can't be overstated, but more importantly the simple fact that she's alive means that Diana is one of the only characters of her status to have a surviving parent. Diana's life is often defined by her relationship with Themyscera and with her mother specifically, and Hippolyta's history with the gods is often the framing device for the best of her adventures.
In addition, Hippolyta has had adventures of her own during World War II. The comics deliberately make these time traveling adventures in an effort to ensure that Diana remains the first amazon to leave the island, while also creating a narrative loophole to explain Wonder Woman's activities with the wartime Justice Society If we let that element go, however, the entire story (love affair with Steve Trevor included) fits quite nicely in Hippolyta's timeline.
One decision that we truly belabored was whether or not to include her death. It's almost a cliche for a character's mother to die simply to write them out of the story, and it seemed hackneyed to do that here as well. However, Hippolyta isn't just a background parent character. The death of a mentor is a fundamental part of the classic hero's journey, and Hippolya's heroic sacrifice for her daughter's life is a poignant capstone to a story fit for a character of Grecian legend.