Inventor of the Barbie doll.
Former president of toy manufacturer Mattel Inc.
Mattel was co-founded by Handler's husband Elliot, and his partner, Harold Matson.
Ruth's main inspiration for the Barbie Doll was a racy, adult-oriented German doll she found on a trip to Europe named Bild-Lilli.
Ruth Handler - Wikipedia
"Ruth Mosko Handler" - Jewish Women's Archive
"Ruth Mosko Handler" - Jewish Virtual Library
"Barbie’s Secret Sister Was a Sexy German Novelty Doll" - History.com (2019)