Answer:
Do you mean in comparison with other fashion dolls? If so:
Barbie was the first adult figure fashion doll.
She's been sold for more than 50 years. The competing fashion dolls' lifetimes averages about five years.
Since the Barbie doll has had such a long lifespan, her facial makeup, hairstyles, body types and especially her clothing are an excellent historical guide to popular fashion since the late 1950s.