Premise: Black Panther (comics) . He is the first black superhero in mainstream American comics , debuting years before such early African-American superheroes as Marvel Comics ' the Falcon ( 1969 ) and Luke Cage ( 1972 ) , and DC Comics ' Green Lantern John Stewart ( 1971 ) and Black Lightning ( 1977 ) .
Hypothesis: Black Panther is a superhero who was the first African-American superhero to appear in mainstream comics.
Label: ENTAILMENT