Hello! On my second post we can see the project that explain the history of the comunications until print invention:
History
of communication until print invention
During
prehistoric times (5.000 B.C) man communicated using grunts, sounds,
hand signals and body movements. Ancient
people were searching ways to record the language, they painted on
the walls of the caves (rock art) and they use signals and symbols to
recognize their tribe.
As
human knowledge was developed, it became necessary to write to
transmit information. In Egypt, discovered a new way to record the
language, which was the pictograph (wedge-shaped writing engraved on
a clay tablet) thanks to the tables, the information could be
transported long distances by horse. The Egyptian people, also found
a material called papyrus (material extracted from plants, they were
very thin).
In
1,500 BC in what is now Palestine, the set of symbols was developed
to describe individual sounds, and these symbols formed the alphabet,
putting them together forming words. This first alphabet was called
Cyrillic was an adaptation from the Greek alphabet. The Latin
alphabet was developed on the western countries.
Later,
was invented the parchment, which was obtained preparing both faces
of a strip of animal skin.
This
type of communication was becoming increasingly complex on having
tried to move the information
to big distances, and normally repeaters' use was done.
The
Romans (430 A.C) used torches, in the top of the mountains to
communicate in times of war. In many occasions, the enemy, could see
the information (decipher), and this way the concept of the
codification was introduced.
Meanwhile, in
China, around 105 A.D. Paper was discovered.
In the middle of
the 15th century, the German inventor Johann Gutenberg used mobile
types for the first time in Europe to stamp the Bible. Thousand years
later, when this technology came to Europe, it provoked a great
demand of books (using a new machine called screw-press).
Thanks to the
press (1438) and his diffusion in the European continent, there could
be stamped steering wheels and rudimentary forms that they
contributed to the decrease of the illiteracy.