On-sale date from copyright registration.
Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Story is across 23 pages, but pages 9, 15, and 23 are half pages.
5700 A.D. story.
letters submitted by Alan Trahern; Frank Klein; Celeste Kerby; Charles Goff
hint submitted by Gary Ross of Halifax, Nova Scotia
Statement of October 1, 1966
Average number of copies sold during preceding 12 months (total paid circulation): 245,699
Actual number sold for issue nearest filing date (total paid circulation): 276,573
Owners: National Periodical Publications, Inc., Estate of Harry Donenfeld, J. S. Liebowitz, P. H. Sampliner, Irwin Donenfeld, S. U. Sampliner, and Sonia Mondschein, all at 575 Lexington Avenue, New York, N.Y.
Published in cooperation with the National Social Welfare Assembly.
Previously appeared in DC comics cover-dated May 1963.