Captain Marvel, now riding high at the box office, debuted under the name of Ms. Marvel in 1977 as a spinoff of Spider-man. Maryjane is worshipful, Peter Parker dubious, and J. Jonah Jameson chomping at the bit at her arrival.
How about some other superheroines courtesy of random generation…?
The Lone Bandita
The Stainless Steel Girl
The Gray Witch