22 December 1997,
In the village of Acteal in Chiapas, 45 indigenous peasants were killed by paramilitaries linked to the Mexican government. President Salinas had organized a clandestine military network to fight the Zapatistas. Most of the dead were children and women and the Zapatistas remember the black day.
Source:
Josep Fontana, for the sake of empire. (Ed. Past and Present).