The novelette
- During the 1940s, Dr Asimov was drafted to military service. "Evidence" is the only story he wrote during this timeframe, because he applied for leave to complete his PhD. He was out of uniform by the time this story was published in Astounding. Confirmed by The Early Asimov (1972) and Isaac Asimov Presents: The Great Science Fiction Stories, Volume 8 (1946) (1982).
