Step 1 : Introduction to the question "According to Mattel, what is Barbie's last name?"
On this day in 1959, the first Barbie doll went on display at the American Toy Fair in New York City. Barbie's full name is Barbara Millicent Roberts. In a series of novels published by Random House in the 1960s, her parents' names are given as George and Margaret Roberts from the fictional town of Willows, Wisconsin. Businesswoman Ruth Handler is credited with the creation of the doll using a German doll called Bild Lilli as her inspiration. Mattel has sold over a billion Barbie dolls, making it the company’s largest and most profitable line.