Niven, Larry. "Death in a Cage"
Divergence: 1962 CE
Summary: Post-holocaust time-traveler creates our timeline by preventing a blow-up resulting from the Cuban missile crisis.
Published: In The Flight of the Horse, Ballantine 1973 (0345234871), 1981 (0345298101), Orbit 1986 (0860078493).
Original in: English.
Translation: German by Hans Maete as "Der Tod im Kaefig", in Der Flug des Pferdes, Heyne 1981.
Translation: Italian by Alfredo Pollini as "La morte nella gabbia", in Il tempo di Svetz, Fanucci 1978.