The Antikamnia Chemical Company created these morbid calendars in the late 19th century and early 20th century to promote their pain killers to druggists. While their products were effective, they were revealed to contain a banned—and poisonous—ingredient, acetanilid. Images: Wellcome Library
The mandrake is a mythologized plant with a root that looks like a human figure. The root is poisonous and hallucinogenic, it was once a common anesthetic and potion ingredient. Legends say mandrakes scream and cry when uprooted—killing anyone who hears. So use safe harvesting methods! Image: Ernte eines Alrauns (Medicina antiqua), 1250
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