Dr. Walsh’s Old-Time Makers of Medicine chronicles the history and development of modern medicine from ancient times up to the discovery of America. Throughout this historical guide, Dr. Walsh shows numerous examples of practices thought to be entirely modern that were clearly anticipated hundreds or thousands of years ago. Ancient healers sought to use the body’s natural healing ability, rather than rely exclusively on external cures. Physicians even in ancient times relied on what is now recognized as the placebo effect.

Dr. Walsh also addresses training and certification in medicine. Medieval universities anticipate our modern medical textbooks with consolidated records...