19 years ago - Stephanie Brown is born, the daughter of Arthur Brown.
4 years ago - 15-year-old Stephanie Brown discovers that her father is the Cluemaster. She becomes Spoiler, and meets Robin.
3 years ago - 16-year-old Stephanie Brown becomes pregnant. Tim Drake helps her have her baby, which she gives up for adoption.
2 years ago - 17-year-old Stephanie Brown volunteers to become the new Robin when Tim Drake quits. She is fired, and inadvertently initiates Batman's Wargames protocol in an attempt to earn her way back. She is severely injured and presumed dead, but is in fact taken from Gotham by Leslie Thompkins. She spends ten months in South America recuperating.
now - 19-year-old Stephanie Brown returns to Gotham. She becomes the new Batgirl, moving into Barbara Gordon's clocktower to train with her, becoming a part-time member of the Birds of Prey.