Heinlein, Robert A. To Sail Beyond the Sunset: The Lifes and Loves of Maureen Johnson (Being the Memoirs of a Somewhat Irregular Lady)
Divergence: 1940 CE
What if: The 1940 US election went another way.
Summary: Memoirs of an immortal woman.
Comments: Includes a short discussion of alternate universes with a few historical details and which serves as as a belated allohistorical rationale to much of the Heinlein canon, i.e., the Future History stories.
Published: Ace/Putnam 1987 (0399132678); Michael Joseph 1987 (0718129504); Sphere 1988 (0747400814); Ace 1988 (0441748600).
Original in: English.
Translation: French by Francis Kerline as Au-delà du crépuscule ou La Vie et les amours de Maureen Johnson: mémoires d'une dame un peu speciale, J'ai lu 1989 (2277225916).
Translation: Italian by Gaetano L. Staffilano as Oltre il tramonto, Mondadori 1989 (8804329661).