Bubonic Plague was known as the Black Death and had been known in England for centuries. It was a ghastly disease. The victim's skin turned black in patches and inflamed glands or 'buboes' in the groin, combined with compulsive vomiting, swollen tongue and splitting headaches made it a horrible, agonizing killer.
Uses of Tin. Tin is mostly commonly used in alloys, and in tin plate which is a thin sheet of steel with a protective coating of tin. Tin plate is used for food cans because it is not reactive to the acids present in food.
There are nine tin-bearing ores found naturally in the earth's crust, but the only one that is mined to any extent is cassiterite. In addition to the ores themselves, several other materials are often used to process and refine tin. These include limestone, silica, and salt.Carbon, in the form of coal or fuel oil, is also used. The presence of high concentrations of certain chemicals in the ore may require the use of other materials.in is also combined with copper to form bronze and with lead to form solder. A tin compound, stannous fluoride, is often added to toothpaste as a source of fluoride to prevent tooth decay. The earliest use of tin dates to about 3500. in what is now Turkey, where it was first mined and processed.