Influenza Encyclopedia: The American Influenza Epidemic of 1918-1919 : A Digital EncyclopediaFrom the University of Michigan's Center for the History of Medicine. An estimated 650,000 Americans lost their lives to the infamous and tragic 1918-1919 influenza epidemic....These pages contain the stories of the places, the people, and the organizations that battled the American influenza epidemic of 1918-1919. This resource features more than 16,000 historical photos and documents.