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Adolescence, as we know it, was barely recognized before the end of the last century. An examination of various written materials from the period 1800-1875 uncovers (1) almost no usage of the word and (2) only a limited degree of concern with the stage (and its characteristic behaviors). About 1900, however, G. Stanley Hall and his students made adolescence the focus of a new current of psychological study. Their work evoked a broad popular response, though in subsequent years it was discredited in academic circles. The discovery of adolescence can be related to certain broad changes in American life-above all, ta changes in the structure of the family as part of the new urban and industrial order.
Demos et al. (Sat,) studied this question.