 (1994), and "Identity Crisis" (2004), and some mention the events of "Crisis on Infinite Earths".The second part of one of DC's later crossovers, "Convergence" (2015), heavily references the series and sees DC's superheroes travel back to its era.The writers of "Convergence" all had fun writing stories set during "Crisis on Infinite Earths", calling the series an exciting time for DC.