Skinner's first book was the Behavior or Organisms which introduced a systematic approach to stud behavior as the subject matter in its own right. He proposed stimuli and responses were related to each other as members of classes rather than on a one to one basis. Skinner introduced both respondent and operant behavior.
Fred Keller, one of Skinner's students developed a behavioral curriculum at Columbia University based on Skinner's teachings.
From there, The Journal of Experimental Psychology, the Journal of Applied Behavior Analysis, and what is now known as the Association of Behavior Analysis international was created.