Final answer:
The provided historical context discusses the evolution of Canadian medical services and the role of Canadian nurses during World War I, but it does not specify when or if Health Canada was renamed.
Step-by-step explanation:
When was Health Canada Renamed?
The information provided does not specify when Health Canada was renamed, and the historical context provided does not include a direct reference to Health Canada's renaming.
Health Canada, as a federal department, is responsible for helping Canadians maintain and improve their health, ensuring that high-quality health services are accessible, and working to reduce health risks. While the provided information gives a historical account of Canadian nursing and medical services in relation to events such as World War I and the post-war reorganization, it does not mention the renaming of Health Canada. The historical context mentioning the Canadian military medical services, the signing of the Armistice in 1918, and the Women's War Conference in 1918 highlights the commitment to national health and the role of Canadian nurses.
Figures like Margaret Macdonald, who was called to organize nurses for Canadian overseas contingents, exemplify the leadership in medical services. However, the specific year or event when Health Canada underwent a name change, if any, is not found within the text provided. Further research would be required to accurately determine the answer to this query.