refer to Indigenous peoples who live in the Americas came into widespread, common use during the civil rights era of the 1960s and 1970s. This term was considered to represent historical fact more accurately (i.e., "Native" cultures predated European colonization). In addition, activists also believed it was free of negative historical connotations that had come to be associated with previous terms. Between 1982 and 1993, most American manuals of style came to agree that "color terms" referring to ethnic groups, such as Black, should be capitalized as proper names, as well as Native American. Other objections to Native American—whether capitalized or not—include a concern that it is often understood to exclude American groups outside the contiguous US (e.g., Alaska, Hawaii, and Puerto Rico), and Indigenous groups in South America, Mexico and Canada. The word American is sometimes questioned because the peoples referred to resided in the Americas before they were so named. As of 1995, according to the US Census Bureau, 50% of people who identified as Indigenous preferred the term American Indian, 37% preferred Native American, and the remainder preferred other terms or had no preference. "Indigenous" (1980s) According to The American Heritage Dictionary, "Indigenous specifies that something or someone is native rather than coming or being brought in from elsewhere: an indigenous crop; the Ainu, a people indigenous to the northernmost islands of Japan." The United Nations World Summit on Sustainable Development used the term "Indigenous peoples" for the first time in its official political declaration in 2002. Prior to this date, the term was considered to be "still under debate" for usage in official UN documents. "Aboriginal" and "Aborigine" The English adjective "aboriginal" and the noun "aborigine" come from a Latin phrase meaning "from the origin;" the ancient Romans used it to refer to a contemporary group, one of many ancient peoples in Italy. Until about 1910, these terms were used in English to refer to various Indigenous peoples. Today throughout most of the English-speaking world, it is most commonly understood to refer to the Indigenous Australians, with the notable exception of Canada, where the term "aboriginal" (but not aborigine) came into use in the Canadian Constitution Act, 1982. "Alaska Native" "Alaska Native" refers to the Indigenous peoples in Alaska, including the Aleut, Athabascan, Alutiiq, Cup'ik, Haida, Inuit, Iñupiat, Tlingit and Yup'ik peoples. The term predominates because of its legal use in the Alaska Native Claims Settlement