context: Back in the United States, Handler redesigned the doll with the help of Jack Ryan and was given a new name, Barbie. Barbie dolls first appeared at the American International Toy Fair in New York on March 9, 1959. [2] This date is also set as the doll's birthday.
question: When were Barbie Dolls First Invented?
answers.text: March 9, 1959