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.
Typically used for texts, the invention of the printing press is widely regarded as one of the most influential events in the second millennium, ushering in the period of modernity. Movable-type presses using cast ceramics were employed in China from the early years of the last millennium.In 1377, the first movable metallic types were invented in Goryeo Dynasty in Korea, which were used to print Jikjishimcheyojeol or simply Jikji, which is the oldest extant movable metal print book.The printing press was introduced to the West in the Holy Roman Empire by Johannes Gutenberg, around 1440.Gutenberg, a goldsmith by profession, devised a hand mould to create metal movable type, and adapted screw presses and other existing technologies, to create a printing system.ovable-type presses using cast ceramics were employed in China from the early years of the last millennium. In 1377, the first movable metallic types were invented in Goryeo Dynasty in Korea, which were used to print Jikjishimcheyojeol or simply Jikji, which is the oldest extant movable metal print book.