United Nations Economic and Social Council. (2018). Action plan for organizing the 2019 International Year of Indigenous Languages.
“Indigenous languages also represent complex systems of knowledge developed and accumulated over thousands of years. Local languages are indeed a kind of cultural treasure; they are repositories of diversity and key resources for both understanding the environment and utilizing it to the best advantage of local populations, as well as of humanity as a whole. They foster and promote local cultural specificities, customs and values which have endured for thousands of years.” (p 2-3)