 The early Prussian school system provided eight years of instruction in reading, writing, music and religious studies. It imposed a strict ethos of duty, discipline and obedience, and that worked. The model turned into a big cultural, economical and military success. Not long after, state officials all around the world started writing curriculums and public education became both a child's right and duty. In 1938, the Germans then went one step further and made school attendance compulsory. Ever since, it's not parents but the state that makes sure kids go to school. Today, 85% out of all adults worldwide are literate. Should government officials still have a monopoly on how we learn, a growing number of parents don't think so and want to take control over their own child's education. They advocate for what's called unschooling. . . . . .