In the United States the first day nursery was opened in 1854. Nurseries were established in various areas during the 【C1】______ half of the 19th century; most of 【C2】______ were charitable. Both in Europe and in the U. S. , the day-nursery movement received great 【C3】______ during the First World War, when 【C4】______ of manpower caused the industrial employment of unprecedented numbers of women. In some European countries nurseries were established even in munitions plants, under direct government 【C5】______ . Although the number of nurseries in the U. S. also rose 【C6】______ , this rise was accomplished without government aid of any kind. During the years following the First World War, 【C7】______ , Federal, State, and local governments gradually began to 【C8】______ a measure of control in the day nurseries, chiefly by 【C9】______ them and by inspecting and regulating the conditions within the nurseries.