"The Salish peoples are an ethno-linguistic group of the Pacific Northwest, identified by their use of the Salish languages which diversified out of Proto-Salish between 3,000 and 6,000 years ago.The term \u201CSalish\u201D originated in the modern era as an exonym created for linguistic research. Salish is an Anglicization of seli\u0161, the endonym for the Salish Tribes of the Flathead Reservation."@en .