Conversation so far:
What was Girl power?
The phrase "girl power" put a name to a social phenomenon, but the slogan was met with mixed reactions.
How was the spice girls related to girl power?
However, it was not until the emergence of the Spice Girls in 1996 with "Wannabe", that the concept of "girl power" exploded onto the common consciousness.

Question: Did they coin the term "girl power"?
Self-contained rewrite: Did the Spice girls coin "Girl Power"?