The document discusses Ivii'a, the critically endangered language of the Iviatam people, also known as the Cahuilla. It was once spoken across Southern California but is now limited to a few elderly speakers. The document outlines the three dialects of Ivii'a - Desert, Pass, and Mountain Cahuilla - and how the loss of the language has negatively impacted Iviatam culture and identity, leading to issues like substance abuse. It argues that Christian missionaries and colonial governments have benefited most from the erosion of Indigenous languages and cultures. Efforts to revive Ivii'a are discussed.