Disinformation was seen as an appropriate tool of politics and rhetoric in ancient Greece. Most of all persuasion was used, which then was considered a type of art.
Religion was (and in many ways still is) the best disinformer or manipulator; prophecies were constructed to manipulate the population. The important thing was to use emotions and more than anything else fear as a tool for manipulation. If the oracle of Delphi said a war was to fight and would be won, then the Greek population - because of religious motives - was prepared to fight that war.
Propaganda was not only used in wars but also in daily life to bring people together and create a nation.
But poets, playwrights and other artists were manipulating as well. Their pieces of literature and plays were full of political messages with different ideologies behind. In the way how theatre at that time was part of life, it can be understood easily that those messages had not only entertainment's character but also a lot of political and social influence.
A different and very famous part of disinformation in ancient Greek history was the story of
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b. Jan. 4, 1809, Coupvray, near Paris, France
d. Jan. 6, 1852, Paris, France
Educator who developed a system of printing and writing that is extensively used by the blind and that was named for him. Himself blind Braille became interested in a system of writing, exhibited at the school by Charles Barbier, in which a message coded in dots was embossed on cardboard. When he was 15, he worked out an adaptation, written with a simple instrument, that met the needs of the sightless. He later took this system, which consists of a six-dot code in various combinations, and adapted it to musical notation. He published treatises on his type system in 1829 and 1837.