Ruth Handler was an American businesswoman best known for co-founding the toy company Mattel and creating the iconic Barbie doll. Born on November 4, 1916, she wanted to provide young girls with a doll that represented adult women, allowing them to imagine their futures. This innovative idea led to the launch of Barbie in 1959, which quickly became a cultural phenomenon. Handler's vision extended beyond just toys; she aimed to empower girls through play. Despite facing challenges in the male-dominated toy industry, her determination and creativity helped shape the landscape of children's toys, making her a significant figure in American history.