Krona (character)

Krona is a supervillain appearing in comic books published by DC Comics. Primarily appearing in association with Green Lantern, Krona is an Oan, the species who established the Green Lantern Corps. Krona was inadvertently responsible for the creation of the multiverse after attempting to view the beginnings of the universe. The machine he was using exploded while in use and shattered the universe, splitting it into many universes.