Six years ago Professor E. Keenan wrote a major study, refuting the authenticity of the correspondence between Ivan the Terrible and Kurbskii. Keenan's book attracted great attention. In 1973 the Institute of Russian Literature (Pushkinskii Dom) published my book Correspondence between Ivan the Terrible and Kurbskii: Paradoxes of Edward Keenan. In the course of the discussion generated by the publication of Keenan's book, scholars of the most varied schools and tendencies have expressed their reaction to the subject of the controversy. Between 1972 and 1975 a series of articles summarizing the controversy were published, and the matter was thoroughly discussed. Edward Keenan's paradoxes have not received support among the scholarly community. Keenan's idea that, in view of the spuriousness of nearly all the writings of Ivan IV and several other significant compositions of that time, the history of Russia in the sixteenth century needed to be written anew might have served as a stimulus to an all-embracing discussion of a broad range of problems. In the absence of any serious proof of the fabrication, however, such a discussion did not take place. A number of works of Ivan IV and Kurbskii have been preserved to the present in copies indisputably compiled in the sixteenth century, and the controversy as to whether the persons in question were the writers goes by default.