C.A.D.A. Archive The C.A.D.A has long history of making technical contributions to the field of Dianetics. The archives of the C.A.D.A. contain some of the earliest, most innovative and informative material on Dianetics ever written. In conjunction with the C.A.D.A. historical committe, as we pour through this material we will put much of it in this web-section and bind other material for physical publication. Stay tuned for some interesting reading.