The playground movement in America is some twenty-five years old, and began with the opening of sand gardens for little children in Boston. The progress of the first twelve years was slow, but about the year 1900 the movement may be said to have blazed forth and taken city after city by storm. In the ten years—1900 to 1910—Chicago expended $11,000,000 and New York about $16,000,000 in establishing municipal children's playgrounds. In 1906 was founded The Playground Association of America, a propagandist body the directorate of which is composed of many of the greatest experts in the country in the fields of education, physical training, eugenics and social work in all its branches.