What have the peoples in the Americas been more vocal about since the 20th century?
However, since the 20th century, indigenous peoples in the Americas have been more vocal about the ways they wish to be referred to, pressing for the elimination of terms widely considered to be obsolete, inaccurate, or racist. During the latter half of the 20th century and the rise of the Indian rights movement, the United States government responded by proposing the use of the term "Native American," to recognize the primacy of indigenous peoples' tenure in the nation, but this term was not fully accepted. Other naming conventions have been proposed and used, but none are accepted by all indigenous groups.
Calvin Veltman undertook, for the National Center for Education Statistics and for the Hispanic Policy Development Project, the most complete study of English language adoption by Hispanophone immigrants. Mr Veltman's language shift studies document high bilingualism rates and subsequent adoption of English as the preferred language of Hispanics, particularly by the young and the native-born. The complete set of these studies' demographic projections postulates the near-complete assimilation of a given Hispanophone immigrant cohort within two generations. Although his study based itself upon a large 1976 sample from the Bureau of the Census (which has not been repeated), data from the 1990 Census tend to confirm the great Anglicization of the US Hispanic American origin population.