title: Guardians of the Universe
context: The Guardians of the Universe are a fictional race of extraterrestrials appearing in American comic books published by DC Comics, commonly in association with Green Lantern. They first appeared in Green Lantern Vol. 2, Issue 1 (July 1960), and were created by John Broome and Gil Kane.[1] The Guardians of the Universe have been adapted to a number of films, television programs, and video games.
question: When did DC comics first introduce the Guardians of the Universe?
answers: July 1960