(1834â1908), Dutch ophthalmologist. Snellen was director of an eye clinic at Utrecht. In 1862 he introduced a test for measuring the acuteness of vision which consisted of printed letters or words in type of various sizes.
Brief Summary. Papaver somniferum, opium poppy, is an annual herbaceous plant in the Papaveraceae (poppy family) that originated in southeastern Europe and western Asia, and are now widely cultivated in Europe, Asia, China, and North Africa for their seeds, which are used in baking, as a condiment, and for their edible oil.
Papaver somniferum, the opium poppy, is the species of plant from which opium and poppy seeds are derived.Opium is the source of many drugs, including morphine (and its derivative heroin), thebaine, codeine, papaverine, and noscapine.se of the opium poppy predates written history. Images of opium poppies have been found in ancient Sumerian artifacts (circa 4000 BC). The making and use of opium was known to the ancient Minoans.