Toyota Aritsune. Mongoru no zanko
Title trans.: Afterglow of the Mongols
Divergence: 1241 CE
What if: The Mongols conquered Europe during the 13th century.
Summary: Centuries later, a Caucasian falsely accused of murder steals a time machine in order to prevent the Mongol dominance.
Published: Kadokawa Shoten 1967.
Original in: Japanese.