Some languages once seen as isolates may be reclassified as small families. This happened with Japanese (now included in the Japonic family along with Ryukyuan languages such as Okinawan), Ainu in Ainu languages and Korean in Koreanic languages with Jeju language. The Etruscan language of Italy has long been considered an isolate, but some have proposed that it is related to the so-called Tyrsenian languages, an extinct family of closely related ancient languages proposed by Helmut Rix in 1998, including the Rhaetian language, formerly spoken in the central Alps, and the Lemnian language, formerly spoken on the Greek island of Lemnos.