1950: The Turing Test Alan Turing, an English mathematician and logician, advocated the theory that eventually computers could be created that would be capable of human thought. To cut through the long philosophical debate about exactly how to define thinking he proposed the "imitation game" (1950), now known as Turing test. His test consisted of a person asking questions via keyboard to both a person and an intelligent machine within a fixed time frame. After a series of tests the computers success at "thinking" could be measured by its probability of being misidentified as the human subject. Still today Turing's papers on the subject are widely acknowledged as the foundation of research in artificial intelligence.

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The British Propaganda Campaign in World War I The British set up a unique system for propaganda, involving GB, the USA and all the colonies. Most different agencies and civilians worked together, the civilians not always knowing about the machinery behind. During the first years of the war the main goal was to achieve a U.S.-entry to the war on Britain's side of the battle. All propaganda was working on this, which meant to destroy Germany's reputation and create dark stereotypes about them, which was an easy task as the Germans were not only fatally unlucky but also very weak in propaganda. At the same time the U.S.-citizens' opinion about the war had to be influenced. The most promising way to do so was by starting with the men in power. One of the most beloved tools at that time was the use of atrocity stories; and most popular among the masses were cartoons, furthermore posters, an element perfectioned by the USSR in World War I and II, and movies. The particular thing was that British propaganda finally had an effect on the German population. Soldiers at the front and people at home received the disinformation messages, mostly pamphlets that had been dropped by aeroplanes or balloons. Together with the development of the fightings turning against the Germans this kind of propaganda was able to discourage the people and make the German government lose its power of propaganda. "Allied propaganda had caused a collapse of morale at home." (Taylor, Munitions of the Mind, p. 188) After all this success it is hardly understandable that the British committed a huge error right after the war, an error that had bad consequences for the next war: being regarded as a tool of war and therefore regarded as inappropriate for times of peace, the propaganda institutions were closed. At about the same time similar ones were built up in Germany - first of all on paper, in Hitler's book Mein Kampf, whose author was an admirer of the British propaganda machine in World War I and decided to perfect it in his own country.

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Neural network A bottom-up artificial intelligence approach, a neural network is a network of many very simple processors ("units" or "neurons"), each possibly having a (small amount of) local memory. The units are connected by unidirectional communication channels ("connections"), which carry numeric data. The units operate only on their local data and on the inputs they receive via the connections. A neural network is a processing device, either an algorithm, or actual hardware, whose design was inspired by the design and functioning of animal brains and components thereof. Most neural networks have some sort of "training" rule whereby the weights of connections are adjusted on the basis of presented patterns. In other words, neural networks "learn" from examples and exhibit some structural capability for generalization.

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Artificial intelligence approaches Looking for ways to create intelligent machines, the field of artificial intelligence (AI) has split into several different approaches based on the opinions about the most promising methods and theories. The two basic AI approaches are: bottom-up and top-down. The bottom-up theory suggests that the best way to achieve artificial intelligence is to build electronic replicas of the human brain's complex network of neurons (through neural networks and parallel computing) while the top-down approach attempts to mimic the brain's behavior with computer programs (for example expert systems).

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