Over the past 50 years, Russia has lost ten languages: South Mansi (late 1960s), Soyot (1970s), Sakhalin-Ainu (1975), Yug (early 1990s), Oroch (2008), Kamasin (1989), Western Mansi (early 2000s), Sirenik Eskimo (1997), Kerek (2005), East Mansi (2018).