Margaret Carter (Earth-2461)

Margaret "Peggy" Carter was a frail young woman who tried to enlist in the US Army in order to combat the Axis during World War II, but was rejected due to her poor health and the sexist attitudes of the time, unlike her best friend James "Bucky" Barnes. Carter's strong will prompted Abraham Erskine to select Peggy as the person who would become the world's first Super Soldier in order to serve the United States and the Allies in the war. After Erskine was assassinated right after the transformation, Carter was labelled as Captain America and began the quest to combat the Nazi's secret science and weapons division, Millennium.

For five years Captain America, Bucky and the Justice Society fought against Millennium and it's members, such as Karl Rupretch Zemo, Doctor Arnim Zola, Poison Ivy and it's leader, the Red Skull.

During a ultimate battle between Carter and the Red Skull in the Artic, which resulted in Bucky's apparent demise, Captain America took the hefty sacrifice of crashing an ship full of nuclear bombs into the middle of the ocean, in the hopes of saving mankind. She was frozen in ice, but managed to survive for the next 70 years due to her advanced physiology.

She was found and reawakened by Slade Wilson and A.R.G.U.S. in the 21th Century, finding herself alone in a world beyond her time. However, when Wilson called upon Carter to defend the world once more, she donned her shield and suit to help defeat the Dominators and save Earth, becoming a founding member of the Justice League.