Méry, Joseph. "Histoire de ce qui n'est pas arrivé"
Title trans.: "History of What Never Happened"
Divergence: 1799 CE
What if: Napoleon captured the citadel at Acre after a 60-day siege.
Summary: Napoleon presses on with his quest to vanquish Britain by means of capturing India, but after taking Bengal begins to look onwards to the Orient.
Comments: One of the earliest purely allohistorical works known, and at 72 pages the second or third allohistorical oldest "novel" known. Includes an introduction by the author on why he was inspired to write the story.
Published: In Les Nuits d'Orient, contes nocturnes, Michel Lévy fréres 1854.