"Aboriginal peoples in Canada self-identify and are defined by the state [...] these two systems of definition, one based in law and legislation, the other in family tradition and community practice, are frequently in conflict." (From Indigenous Foundations).
"If you are unsure about names and terms, ask the Aboriginal people you’re reporting on which term they prefer." (From Reporting in Indigenous Communities).
When searching for information using the UBC Library Catalogue, Summon, or databases, remember that names of Indigenous nations and languages often change over time and spellings may vary. You may need to conduct multiple searches using a variety of search terms to find information about a particular Indigenous nation or language.
Changes Over Time
The First Peoples' Language Map of British Columbia maintains a First Nations Index, which includes current and other names of nations, and a Language Index, which includes current and other names of languages.