On March 15, 1813, John Snow was born in York, England. In 1854, Snow, a doctor, was the first person to use the geographic method to keep track of the streets where people were getting cholera, a deadly disease. Because of his map, which marked exactly where people were sick, people deduced that a contaminated water pump caused the cholera outbreak.
Snow is considered the father of epidemiology, the study of the “patterns, causes, and effects of health and disease conditions in defined populations.”
Term Part of Speech Definition Encyclopedic Entry cholera Noun
infectious, sometimes fatal disease that harms the intestines.
to poison or make hazardous.
to reach a conclusion based on clues or evidence.
a harmful condition of a body part or organ.