This successful revitalization of the Silver Age Teen Titans led DC's editors to seek the same for the wider DC Universe. The result, the Wolfman/Pérez 12-issue limited series "Crisis on Infinite Earths", gave the company an opportunity to realign and jettison some of the characters' complicated backstory and continuity discrepancies. A companion publication, two volumes entitled "The History of the DC Universe", set out the revised history of the major DC characters. "Crisis" featured many key deaths that shaped the DC Universe for the following decades, and it separated the timeline of DC publications into pre- and post-"Crisis".