Salicylic acid the product with sulfuric acid gives salicylic acid: It can also be prepared by the hydrolysis of aspirin (acetylsalicylic acid) or methyl salicylate (oil of wintergreen) with a strong acid or base. Hippocrates, Galen, Pliny the Elder and others knew that willow bark could ease pain and reduce fevers. It was used in Europe and China to treat these conditions. This remedy is mentioned in texts from ancient Egypt, Sumer and Assyria. The Cherokee and other Native Americans used an infusion of the bark for fever and other medicinal purposes. In 2014, archaeologists identified traces of salicylic acid on 7th
Cupboard Cupboard The term cupboard was originally used to describe an open-shelved side table for displaying dishware, more specifically plates, cups and saucers. These open cupboards typically had between one and three display tiers, and at the time, a drawer or multiple drawers fitted to them. The word cupboard gradually came to mean a closed piece of furniture. The word cupboard is also frequently used in British English to denote what North Americans would call a closet. An airing cupboard is a storage space, sometimes of walk-in dimensions, containing a water heater; either an immersion heater for hot running water or