In ancient days, we Amazons were a proud and mighty nation. Our small but fierce empire lasted from the time of the Greek swine, until the Roman barbarians. However, change must always come, even to those of use who are timeless.
As the Roman empire waned in it's twilight years, they had shifted worship from the gods of Olympus to a new figure, one bearing a cross. We Amazons remained loyal to the old gods and the old ways, and that was what saved us. Juno came to our last queen, Hippolyta, and told her of an enemy coming from the east. At first, Hipolyta insisted we would turn the enemy way, but Juno was insistant. This enemy, she told Hipolyta was not one even the Roman empire could bat away. No, this was barely a man. She told us of this Savage king who would sack our cities and Vandalize our temples. She told us that he was immortal, and not even our most experienced warriors would be able to stand against him.
However, the goddesses would not forsake us. They told us of a mystical paradise island they had created, where we Amazons would live forever as immortal warriors to serve the gods should they ever need us. Juno Moneta, together with Ceres, and Diana, and Venus crafted this world and called it Themiscyra, after our Ancient capitol. We began the evacuation, but the Goddesses had been forced to leave all of this until too late, and the army of the Savage king began to pour in. The elder warriors all surged forward into combat, urging the younger warriors through the magical gateway to our new island strong hold. Our queen saw as she was pushed through by her sisters acting as a rear guard the Savage king.
On the island, as promised, we became immortal, or at least, we did not age past just reaching maturity. No problems came month after month, year after year, though we maintained our martial readiness. However, the Queen was now the elder stateswoman, by a large margin, the elder soldiers having given their lives to preserve the younger generations. There is no doubt the Queen would have as well, had her guard not acted as prudently as they did.
However, our Queen being older than the other girls meant she had been through certain biological changes that they had not. in short, she yearned for a daughter. one of her own to raise and teach and love. She prayed day in and day out to the gods, and made sacrifice of her most precious possessions. Finally the gods granted her wish. Using the clay that Jupiter had used to form Pandora.
Hipolyta formed from the clay the daughter she dreamed of, and the goddesses, in their charity, breathed life into the babe, but gave a prophesy at the time. This child, would some day end the exile of the Amazons, and bring them face to face with that Savage king they had so narrowly escaped and lost so many of their sisters too
Days turned to years, which turned to centuries. The young girl, who they named for the goddess of the hunt, grew to maturity like the other girls, however unlike the others, I had never known the outside world, the world of men. Part of me burned with curiosity for them. and as the world changed around us, a new breed of man arising, I could not contain my curiosity any longer. I stole the sacred armor and manacles, and struck out for Man's world in one of the ships we used to practice naval battles. On my journey I was visted by by Juno, guided by Salina. They warned me that if I went to Man's world, I would never be like the women there, nor would I ever be the Amazon my mother always wished for me to be. I would be forever different. However if I had the courage to make the journey, they would see me safely across the seas.
The main villain would be, as I rather hamfistedly hinted, Vandal Savage. He thinks Diana looks like her mother. He would be rather the fiendish and coldly "logical" sexist, stating in a reasonable tone that there would always be places where men were superior. in the modern world he owns a Private Security firm (A private army) and leads them into global hotspots to try and engineer the world to suit his barbaric ideals of justice.