Another cause of sore throat is allergies that promote postnasal drip. There are, however, more serious conditions of the sinuses and throat that may cause the throat to be sore. If you are experiencing an ongoing sore throat, ask your ear, nose, and throat specialist to examine you.
1907: Samuel Simon patented the first screen printing method in Manchester, England, which was most commonly applied to wallpaper and expensive fabrics. He used rubber bands or squeegees, which are still commonly used in the screen printing process today.
Wallpaper actually began in ancient China, first because the Chinese invented paper, and secondly because they glued rice paper onto their walls as early as 200 B.C. In 105 A.D., the Chinese court official Ts'ai Lun, invented papermaking from textile waste, i.e. from rags.ilkscreen printing is said to have originated in Japan and China between 960-1280. Although, it was first patented in England by Samuel Simon in 1907. The first mechanical silkscreen machine was invented in 1920.