Commemorative datesAugust
Cultural
Guaraní Language Day
25 aug
What it is
Observed on 25 August because the 1967 Constitution first recognized Guaraní as a national language. The date was proposed in 1979 by a group of Guaraní teachers. Today Guaraní is an official language alongside Spanish.
Law
Ley N.º 4251/2010 (Ley de Lenguas), marco de los idiomas oficiales
Dates this month · August
Verified · sep 2026
Researched and reviewed in September 2026 with 2 sources. A second reviewer checked dates, coordinates and lodging. Hours and prices may change.