Superman / Batman: Alternate Histories TP #0 (1996)

The four tales in this volume are all set in other times, some long past, some just moments ago. All are different from the past we know. They are alternate histories. Bruce Wayne sails the high seas as the pirate Leatherwing. Gar-El, sole survivor of the planet Krypton, maintains order in colonial America for over two hundred years until his great-grandson, Kal-El, begins to questions his authority. John Henry Irons is born and raised as a slave during the 1800s. Harvey Dent prowls the streets of Gotham as the vengeful vigilante Batman, and only Bruce Wayne can stop him.
Release Date: 1996