All Star Batman & Robin #1 was released in 2005
DC has official designated MIller’s “Dark Knight” universe as Earth 31 in their multiverse.
Posts tagged ##Batgirl
Cassandra Cain (Batgirl or Black Bat)
Her first appearance was in Batman #567 (July 1999).
Batgirl in Legends of the Dark Knight #120 (August 1999).
Barbara Gordon (Batgirl, Oracle)
Barbara made her comic debut in Detective Comics #359 (January 1967).
Oracle first appeared in the original Suicide Squad series as Barbara offered her services anonymously to Task Force X.