Time traveler and historian George tries to travel back to World War II without making any changes to the world.
George was deliriously happy. Two years of red tape and now he was finally back in the past. Now he could complete his paper on the social life of the foot soldier of World War II with some authentic details.

Variants

(1)
  1. “The Message” by Isaac Asimov, Magazine of Fantasy and Science Fiction, February 1956.
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Isaac Asimov