| People onced used drums and smoke signals to send messages across sparsley inhabited valleys . Later, they wrote on rock walls, then on papyrus.People invented paper, wrote letters ,and sent themby foot, boat, or horseback. As historymoved along, new forms of information sharinga were invented. Some of these inventions changed history and our lives forever. | |
| One of the life-changing inventions was the printing press. Johann Gutenberg created a printing press with movabable metal type containing letters, numbers, and symbols, and in 1454, printed multiple copies of a leter. the invention of the printing press allowed millions of inexpensive paper copies to be made quickly and easily.Gutenburg's press was the photocopy machine of the 15th century. today, printing presses allow millions of books, newspapers, and magazines to be mass produced every day. |  |
| Paper printing created huge new indistries. Newspapers have billions of subscribers around the world. Billions of books, magazines, advertisements, and printed materials are constantly being reproduced. Millions of new jobs were created in this printed paper-based comunications indistry. Billions of trees have given up their leafy lives to satisfy the instainable appitite of this industry of printing presses, fax machines, and millions of printers. |  |