Child labour laws are statutes placing restrictions and regulations on the work of minors. Child labour increased during the Industrial Revolution due to the children's abilities to access smaller spaces and the ability to pay children less wages. In 1839 Prussia was the first country to pass laws restricting child labor in factories and setting the number of hours a child could work, although a child labour law was passed was in 1836 in the state of Massachusetts. Almost the entirety of Europe had child labour laws in place by 1890.