Young Blonde Pigtailed Girl With A Barbie Tent

Upon her return to the United States, Handler reworked the design of the doll (with help from engineer Jack Ryan) and the doll was given a new name, Barbie, after Handler's daughter Barbara. The doll made its debut at the American International Toy Fair in New York on March 9, 1959. This date is also used as Barbie's official birthday.
Mattel acquired the rights to the Bild Lilli doll in 1964 and production of Lilli was stopped. The first Barbie doll wore a black and white zebra striped swimsuit and signature topknot ponytail, and was available as either a blonde or brunette. The doll was marketed as a "Teen-age Fashion Model," with her clothes created by Mattel fashion designer Charlotte Johnson. The first Barbie dolls were manufactured in Japan, with their clothes hand-stitched by Japanese homeworkers. Around 350,000 Barbie dolls were sold during the first year of production.
Ruth Handler believed that it was important for Barbie to have an adult appearance, and early market research showed that some parents were unhappy about the doll's chest, which had distinct breasts. Barbie's appearance has been changed many times, most notably in 1971 when the doll's eyes were adjusted to look forwards rather than having the demure sideways glance of the original model.
Barbie was one of the first toys to have a marketing strategy based extensively on television advertising, which has been copied widely by other toys. It is estimated that over a billion Barbie dolls have been sold worldwide in over 150 countries, with Mattel claiming that three Barbie dolls are sold every second.