grammar did not exist in written form. Outside of its native speakers, lexical knowledge from early scientists and explorers of the Rondônia territory did not exist. The first documentation of the Kwaza people was made in 1913 by Candido Rondon because of his expeditions with telegraph lines in areas of Rondônia. In the 1930s, the first written sources of Kwaza words were taken by Claude Levi-Strauss, an anthropologist. Levi-Strauss was on a reconnaissance expedition documented words on standardised enquiry forms developed for this purpose. The standardised forms used allowed for easy lexical comparisons between different languages explorers encountered. Levi-Strauss's 1938 glossary is the oldest source of data from Kwaza and is available in van der Voort's book. The glossary contained fifty-one French words with their equivalent in Kwaza. In 1942, Lieutenant Estanislau Zack created a 222-comparative word list of four languages, including Kwaza. Kwaza was forgotten until Harvey Carlson rediscovered the language in 1984. The third recorded documentation of Kwaza was taken as an unpublished word-list by Carlson. During linguistic fieldwork as an M.A. student from Berkley, he took down fifty Kwaza words, which is available in "A Grammar of Kwaza". The present description of Kwaza is the result of Carlson's word list, as he brought the language to the attention of the linguistic world. Linguist Hein van der Voort's involvement in the Netherlands Organization for Scientific Research (NOW) in 1994 led to the first modern grammar of Kwaza. In his book "A Grammar of Kwaza", Van der Voort presented the first descriptive grammar of the language. The descriptive grammar included phoneme inventory describing the oral vowels, nasal vowels, and place of articulation. Van der Voort provides a complex description of the vowels, with descriptions on minimal pairs, contextual pairs and variation. Consonants were also recorded with their matching IPA transcriptions, places of articulation, and classification. He provides an interpretation of glides, descriptive rules of syllable structure, stress, length, and intonation. Kwaza loan phonology is described with examples. A comprehensive section on parts of speech of Kwaza is available with information on noun phrases, verb phrases, types of morphemes, and word order. Van der Voort includes texts of tales translated from Kwaza to English to bring attention to Brazilian indigenous culture in an effort to preserve it. These texts include traditional tales, historical personal accounts, modern personal accounts, and translated songs. The last section of van der Voort's book is