“Every town should have its own playground.” So proclaimed Frederick Froebel, originator of the kindergarten (“child’s garden”), opening the world’s first dedicated playground in Germany in 1887. Froebel recalled his own rough-and-tumble childhood adventures in the woods with nostalgia for a carefree time, but more importantly as essential to human development and educational progress. Fueled with emerging theories of social analysis together with German boldness and precision, he methodically set out to engineer “free play.”