The control of hookworm disease required direct medication of patients. Overview In an excerpt from Medicine and Nation...
Puerto Rico
Puerto Rico Photo Post Card by Photographer A. Arguinzoni , a Puerto Rican photographer of Corsican descent,...
Puerto Rico: Capilla del Cristo Old San Juan / Wikimedia Commons Taking a look at the long...
Puerto Ricans were granted U.S. citizenship on the eve of America’s entry into the First World War....
Plaza Cristobal Colon in Old San Juan, Puerto Rico / Wikimedia Commons In 1898, the Puerto Rican...