Yes, Batman turns 75 this year, and DC Comics is celebrating all year long, but the day before Comic-Con International: San Diego officially kicks off will be the big one, with “Batman Day” in retailers across the US. To help the celebration, the publisher is releasing a free Batman Detective Comics #27 “Special Edition.” The issue’s cover has Bob Kane, Bill Finger, Brad Meltzer, Bryan Hitch, Scott Snyder, Sean Murphy, and Chip Kidd all credited, which makes it sound like it will have the original first appearance of Batman, the reimagined version by Meltzer and Hitch ("The Case of the Chemical Syndicate") from January 2014's Detective Comics #27, plus the story by Snyder and Murphy that appeared in that issue ("Twenty-Seven"), and additional material by Kidd. The cover is by Greg Capullo.
In addition, DC Comics is releasing a Batman 75th Anniversary timeline poster to select retailers (it won’t be available for sale), which includes 42 major events in Batman’s history, from Stephanie Brown as Robin to the live action TV series, the birth of the Animated Series and more. There will also be capes, bookmarks, and masks for retailers to give out for free. Grayson #1 and Robin Rises: Omega uncoincidentally launch on July 23, 2014, as well, so there’s something for Bat-fans to buy when they’re in stores getting their freebies.