text: The Justice League International featured characters that had previously not been part of the DC Universe, which had been absorbed from the portfolios of other publishers that DC Comics had purchased. These included Captain Atom and the Blue Beetle, which were created for Charlton Comics in the 1960s. In 1983, DC Comics purchased Charlton Comics and, a few years later, integrated the Blue Beetle and Captain Atom into the DC Universe. Captain Marvel, originally from the Fawcett Comics universe, was similarly integrated.
  JLA (1996–2006)
  The cancellation of the aforementioned spin-off books prompted DC to revamp the League as a single team in a single title. A new Justice League of America was launched in a September 1996 miniseries Justice League: A Midsummer's Nightmare by Mark Waid and Fabian Nicieza, which returned to the classic cast. In 1997, DC Comics launched a new book titled JLA. Grant Morrison wrote JLA for the first four years, and they gave the book an epic feel by making the Justice League an allegory for a pantheon of gods, and in their stories they regularly fought villains who threatened the entire world or even the entire cosmos. The ongoing series began its monthly run in January 1997, and concluded in April 2006 after 126 issues.