Why was the polaroid camera invented?

Edwin Land invented the camera for his three year old daughter, Jennifer. In 1944 the Lands were on vacation in Santa Fe, New Mexico. Land took a picture of daughter Jennifer, who asked her dad why it was that she couldn't see the picture right away. Land went for a walk and when he returned he had all the central concepts for what became the Land Camera in his head. The folding camera Edwin Land invented produced black-and-white prints in about one minute from roll film inside the camera. Land patented his camera in 1946 (Patent Number 2435720). The first Land Camera, the Model 95, was sold in 1948 for $89.75 in Boston.