Stewart was introduced as a backup Green Lantern in the mid 70's.
Initially your stereotypical "Angry Black Man" with a
big afro. Living in Detroit, He later got his life together and
became an architect. John Stewart was a calm collected Green Lantern
until error on his part allowed a planet to blow up. He nearly lost
his mind to grief and shame and resigned as a Green Lantern.
was later reinstated and put in charge of Oa. His efforts to reconcile
dozens of non-human races to living together in harmony was recounted
in the series "Green Lantern: Mosaic." This series was
cancelled after a brief run. John Stewart resurfaced and was recruited
to be the head honcho of the Darkstars who attempted to replace
the now defunct Green Lantern Corps. The GL Corps were defeated
and Stewart was crippled in the battle and remains in a wheelchair
at least for now.
it's sad that John Stewart is now a parapalegic, this was one of
DC's better characters. Shame they didn't keep him around in a more
useful form. I guess it would have been unrealistic to think this
character could last as a permanent Green Lantern could that be
why he's been crippled?