On January 2, 1921, in a theater in Hradec Králové, Czech writer Karel Čapek’s play R.U.R. received its world premiere. The initials stood for “Rossum’s Universal Robots,” a fictional company that created a line of intelligent workers, and from which the word “robot” was coined. In Czech, robota means forced labour of the kind that serfs were once required to perform on their masters’ lands; it is derived from rab, meaning “slave.”