The Children's Rights Movement is a historical and modern movement committed to the acknowledgment, expansion, and/or regression of the rights of children around the world. It begun in the early part of the last century and has been an effort by government organizations, advocacy groups, academics, lawyers, lawmakers, and judges to construct a system of laws and policies that enhance and protect the lives of children. While the historical definition of child has varied, the United Nations Convention on the Rights of the Child asserts that "A child is any human being below the age of eighteen years, unless under the law applicable to the child, majority is attained earlier." There are no definitions of other terms used to describe young people such as "adolescents", "teenagers" or "youth" in international law.
Now that child labor had been effectively eradicated in parts of the world, the movement turned to other things, but it again stalled when World War II broke out and children and women began to enter the work force once more. With millions of adults at war, the children were needed to help keep the country running. In Europe, children served as couriers, intelligence collectors, and other underground resistance workers in opposition to Hitler's regime.
The concept of children having particular rights is a relatively new one. Traditional attitudes towards children tended to consider them as mere extensions of the household and 'owned' by their parents &/or legal guardian, who exerted absolute parental control.
Views began to change during the Enlightenment, when tradition was increasingly challenged and the value of individual autonomy and natural rights began to be asserted.
The Foundling Hospital in London was founded in 1741 as a children's home for the "education and maintenance of exposed and deserted young children". Thomas Spence, an English political radical wrote the first modern defence of the natural rights of children in The Rights of Infants, published in 1796.