" That’s right!” said Dr. Nicholas. “So in 1959, Ruth and Elliot decided to make the first Barbie doll. It was eleven and a half inches tall, and it sold for three dollars. It became the most popular doll in the world. Two years later, they came out with Barbie’s boyfriend, Ken, and he was named after their son. "

― Dan Gutman , Dr. Nicholas Is Ridiculous! (My Weirder School, #8)