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People once used drums and smoke signals to
send messages across sparsely inhabited valleys. Later, they wrote on rock
walls, then on papyras. People invented paper, wrote letters, and sent them
by foot, boat, or horseback. As history moved along, new forms of information
sharing were invented. Some of these inventions changed history and our lives
forever. This picture is at (http://www.folkart.com/~latitude/thompson/thompson.htm) | ![]() |
| One of the life-changing
inventions was the printing press. Johann Gutenberg created a printing press
with moveable metal type containing letters, numbers, and symbols, and in 1454,
printed multiple copies of a letter. 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 everyday. This picture is at(http://ideafinder/facts/story/story039.htm) |
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| Paper printing created
huge new industries. Newspapers have billions of subscribers around the world. Billions
of books, magazines, advertisements, and printing materials are constantly
being reproduced. Millions of new jobs were created in this printed,
paper-based communications industry. Billions of trees have given up their leafy lives to
satisfy the insatiable appetite of this industry of printing presses,
fax machines, photocopy machines, and millions of printers. This picture is found at(http://search.gallery.yahoo.com/search/corbis?p=trees&b=37&strip=O) |
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