[1] Karajá people live in a 180-mile-long area in central Brazil,[2] in the states of Goiás, Mato Grosso, Pará, and Tocantins.

In their exploration of the interior of Brazil they came across the Karajá and used violence in order to confront and control them (Ribeiro, 2012; Museu do Índio, 2016).

In 1811, the Portuguese Empire, based in Rio de Janeiro at the time, waged war against the Karajá and neighboring tribes.

During the mid-20th century, the tribe was overseen by Brazil's federal Indian bureau, the Serviço de Proteção aos Índios or SPI.

[4] In the 1980s and 1990s, the Karajá community leader, Idjarruri Karaja, campaigned for better education, land rights, and employment opportunities for the tribe.

[2] These contacts with outsiders has resulted in cultural exchange to the extent that many Iny have now integrated themselves into Brazilian society, dominating the Portuguese language and working in official government roles (Museu do Índio, 2016).

In addition, the Iny have a set of loan words from other indigenous communities due to repeated contact with groups such as the Tapirapé and the Kaiapó (Ribeiro, 2012).

Crops are diverse and include bananas, beans, manioc, maize, peanuts, potatoes, watermelons, and yams.

In the phonological context, Ribeiro writes about language characteristics such as syllable patterns, stress placement, inventory, and consonants, among others.

In addition, the project aimed to create material that can be used in the future to preserve and encourage the safekeeping of the language (such as an encyclopedic dictionary).