Final answer:
Nurses in medieval times, particularly during the Holy Wars, played essential roles in medical care on the battlefield. During World War I, their duties became formalized, with the Canadian Army Medical Corps seeing 3,141 nursing sisters providing critical care, sometimes under life-threatening conditions such as bombings and the sinking of medical ships.
Step-by-step explanation:
The description of nurses and their role during the medieval times, particularly during the Holy Wars, can be pieced together from historical accounts of healthcare and medicine of that period. During the Crusades, the battlefield required medical attention for wounded soldiers, a role that was fulfilled by many individuals, including those recognized as nurses. These nurses would have had various responsibilities, from providing basic care to assisting physicians in surgeries. Although the specific term 'nursing' in its modern sense may not have been used, those fulfilling these roles were critical in the care and recovery of soldiers.
In the context of World War I, which is outside of the medieval period, the role of nurses became more defined and organized with entities such as the Canadian Army Medical Corps. During World War I, a total of 3,141 nursing sisters served in various locations, providing invaluable care under trying circumstances. These women not only worked on the front lines but also accompanied soldiers during their voyages home on hospital ships, facing risks such as bombings and ship sinkings.
The demanding and harrowing conditions these nurses faced are highlighted by the sinking of the Llandovery Castle, where fourteen nurses died, showing the extreme dangers they encountered. Their dedication is further shown through awards, like the Military Medal received by Nursing Sisters Hélène Hanson and Beatrice McNair for their exceptional devotion during a bombing. With the advent of the war, nursing saw an expansion of opportunities for women and reinforced the importance of their roles in healthcare both on the battlefield and at home.