“La Huelga de Dolores” is a tradition established by students at the University of San Carlos in 1898, as a means to criticize and satirize the government, the church and other authorities. At various times it has been banned outright or restricted to the university campus, and during the civil war, some of its organizers were kidnapped, assassinated, or “disappeared” by the army, police or paramilitaries.
For more information (in Spanish only), seeĀ La Huelga de Dolores