Science and Medicine
Harvey Williams Cushing (April 8, 1869 – October 7, 1939) was an American neurosurgeon, pathologist, writer, and draftsman. Known as the "father of modern neurosurgery," he was the first exclusive neurosurgeon and the first person to describe Cushing's disease. He wrote a biography of physician William Osler in three volumes.
1881–1896 cholera pandemic.
1793 Philadelphia yellow fever epidemic.
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