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.
From printing to typing. When Johann Gutenberg invented the printing press with loose type in the 15th century, he cleared the way for the gradual proliferation of the printed word. It would seem an obvious second step to use the printing technology to create a machine that could take over the cumbersome task of hand writing.