The evolution of behaviorism from its explicit beginning with John B. Watson's declaration in 1913 to the behaviorisms of the present is considered briefly. Contributions of behaviorism to scientific psychology then and now are critically assessed, arriving at the conclusion that regardless of whether or not its opponents and proponents are aware, the essential points of behaviorism have now been absorbed into all of scientific psychology. It will assist the progress of the science of psychology if its focus now shifts (...) away from incessant relivings of outdated argumentation to empirical discovery and theory construction based on those discoveries. (shrink)