When Does "The Dream and Lie of Franco" (1937) Take Place?
"Sueño y Mentira de Franco" (released to English-speaking audiences as "The Dream and Lie of Franco") is a historical fiction comic-book written by Pablo Picasso and finished June 7th, 1937.
It takes place in the years:
We know this because it shows an exaggerated satirical version of events during the Spanish Civil War. The Franco of the title is the real-world Francisco Franco Bahamonde (dictator of Spain from 1936 to 1975).

1936 AD - 1937 AD
We know this because it shows an exaggerated satirical version of events during the Spanish Civil War. The Franco of the title is the real-world Francisco Franco Bahamonde (dictator of Spain from 1936 to 1975).
The second and final page of the comic leads directly into Picasso's large-scale painting "Guernica", which depicts an event that happened in the real world on April 26th, 1937 AD.