The Mesopotamians knew their migraines; the Egyptians had a word for seizures. The Hindu Vedas have medical term for dropsy and a goddess specifically dedicated to smallpox. Tuberculosis was so omnipresent and familiar to the ancients that – as with ice and the Eskimos – distinct words exist for each incarnation of it. But even common cancers, such as breast, lung, and prostate, are conspicuously absent. With a few notable exceptions, in the vast stretch of medical history there is no book or God for cancer.