The concept of a compensable industrial disease has developed only recently and its acceptance has lagged far behind that of industrial accidents. The original Workers' Compensation Acts, as promulgated from the year 1911 forward by many of the states, did not provide for the recognition of occupational illness and disease as compensable events. As demands have been placed upon the medical system to treat and to prevent occupational illness, the legal system, under social, economic, and political pressure, has sought to provide a remedy for the thousands of injured workers who have suffered and who are continuing to suffer from occupational illness and disease.