The region was settled mostly by native Brazilians, but the Bolivian government had come close to leasing this rubber-rich area to American private entrepreneurs.

A recent analysis suggests that the more recent Portuguese immigrants (from 1900 onwards) had "low rates of intermarriage with native Brazilians and other immigrants".

As is typical, by the third generation, most of the families had intermarried with native Brazilians or immigrants of other origins.

Since then, cricket has become increasingly popular among native Brazilians, with the formation of a women's team and several junior competitions.

Pavuna means dark place in the language of the local native Brazilians who inhabited the place in the past.

In a 2005 study there were 280,897 whites, 34,172 blacks, 25,395 of mixed ethnicities, 998 native Brazilians, 498 Asians, and 998 with an unknown ethnicity.

During the days of the Barbary Wars, some native Brazilians came into interaction with Muslim lands.

In the beginning of the 19th century, the region was mostly occupied by native Brazilians, the Puri-Coroados.

Pentecostal conversions surged during the 1950s and 1960s, when native Brazilians began founding autonomous churches.

At every point in history, whether crucial or insignificant, when the interests of native Brazilians conflicted with those of white people, the Indians had lost.