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R. U. R.
R. U. R. is a 1920 science fiction play by the Czech writer Karel Čapek. R. U. R. stands for Rossumovi Univerzální Roboti. The English phrase "Rossum's Universal Robots" has been used as a subtitle. It premiered on 25 January 1921 and introduced the word "robot" to the English language and to science fiction as a whole.