Final answer:
The provided historical details do not define the year in which the Medical Replacement Training Centers at Camp Lee, Virginia, and Camp Grant, Illinois were established. Military medical care has a complex history that includes many developments in different periods.
Step-by-step explanation:
The Medical Replacement Training Centers at Camp Lee, Virginia, and Camp Grant, Illinois were not established during the Civil War era or World War I; therefore, the provided information from those periods does not contain the specific year these centers were created. Medical care and military medical training have evolved significantly over time, from the impromptu care for escaped slaves during the Civil War, to organized hospital care during the major conflicts of the early 20th century. If the question pertains to the development of military medical facilities throughout U.S. history, one would need to look at the evolution over time which includes the establishment of training centers such as Camp Lee and Camp Grant at a later date, likely during a subsequent period of military development.