Bertrand Russell and Alfred North Whitehead published Principia Mathematica, which revolutionaized formal logic. Russell, Ludwig Wittgenstein, and Rudolf Carnap lead philosophy into logical analysis of knowledge.

1923: Karel Capek\'s play "R.U.R."(Rossum\'s Universal Robots) opens in London. - First use of the word \'robot\' in English.

1943: Warren McCulloch & Walter Pitts publish "A Logical Calculus of the Ideas Immanent in Nervous Activity" , laying foundations for neural networks.

Arturo Rosenblueth, Norbert Wiener & Julian Bigelow coin the term "cybernetics" in a 1943 paper. Wiener\'s popular book by that name published in 1948.

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