File talk:Languages during the Yamato era (Amur-Buyeo languages).png

Sources ?

Hello, what are the sources for the file ? I don't find anything on the web about a so-called "Amur-Buyeo hypothetical language family".

Also, I have found a few issues :

• Where are the Tungusic languages ?
• Koreanic is not only Han languages, but Buyeo + Han
• Dongyi is only mentionned as a Para-Austronesian language, but not closely related to Koreanic, Japonic or anything else. What are the sources ?
• What are the sources for the extention of Nivkhic ?
• Why are Old Japanese and Ryukyuan mentionned separately ?

I'm very skeptical and I'm thinking of asking for the file to be deleted if no source is given. Rishāringânu 21:53, 26 October 2022 (UTC)