On this date in 1959, the toy industry and world at large would be changed forever by an 11-inch doll. The Barbie doll made her iconic debut at the America Toy Fair in New York, and it changed pop culture.

Barbie soared in popularity and by 1961 she’d be so popular that she’d need her own posse. Mattel would go on to produce Barbie’s boyfriend, Ken, her best friend Midge and sister Skipper.

Like the icon she is, Barbie continues to reinvent herself. She now comes in seven skin tones and four body types. Mattel estimates a billion Barbie dolls have sold worldwide. And if you collected any over the years, you should round them up — they may fetch a pretty penny.