 The paper showed, under conditions that were relaxed in later work by Bell (1971, 1976) himself and by his followers (Clauser, Horne, Shimony, and Holt 1969, Clauser and Horne 1974, Aspect 1983, Mermin 1986), that, on the assumption of certain auxiliary conditions, no physical theory that satisfies a certain locality condition, which may be called Bell locality, can fully reproduce the quantum probabilities for outcomes of experiments. Since that time, variants on the theorem, with family resemblances, have been formulated. “Bell’s Theorem” is the collective name for the entire family.