Claudius Galenus makes errors in explaining diabetes which retards progress in knowledge for 1500 years.
January 1, 150
Total Dietary Regulation
Claudius Galenus (born 131 A.D.) saw two patients and introduced two ideas: first, that diabetes is a weakness of the kidneys, which can not hold back water and also are thirsty for fluid; second, that the urine consists of the unchanged drink. Galen's great authority maintained these errors for about 1500 years, and retarded progress in the knowl edge of diabetes.