Classification of Algic
All non-Algonquian Algic languages still spoken are endangered. Yurok is thought to have ten or fewer speakers. Extinct Algic languages include Wiyot, Miami-Illinois, Etchemin, Loup A, Loup B, Mahican, Massachusett, Mohegan-Pequot, Nanticoke, Narragansett, Pamlico, the Penobscot dialect of Abnaki, Powhatan, Quiripi-Naugatuck, Unami, Unquachog, and Shinnecock. The last known Wiyot speaker died in 1962.
Within the Algonquian subfamily, there is a smaller genetic grouping of the Eastern Algonquian languages. The other (non-Eastern) Algonquian languages have sometimes been categorized into two smaller subgroups: Central Algonquian and Plains Algonquian. However, these two subgroups are not based on genetic relationship but are rather geographic or areal subgroups. (See Algonquian languages.)
The genetic relation of Wiyot and Yurok to Algonquian was first proposed by Edward Sapir (1913, 1915, 1923), and argued against by Algonquianist Truman S. Michelson (1914, 1914, 1935). The relationship "has subsequently been demonstrated to the satisfaction of all". This controversy in the early classification of North American languages was called the "Ritwan controversy" because Wiyot and Yurok were assigned to a genetic grouping called "Ritwan". Most specialists now reject the validity of the Ritwan genetic node. Berman (1982) suggested that Wiyot and Yurok share sound changes not shared by the rest of Algic (which would be explainable by either areal diffusion or genetic relatedness); Berman's conclusion of common sound changes was refuted by Proulx (2004).
Read more about this topic: Algic Languages