From my understanding, the Jewish European languages, including Yiddish and Ladino (judeo-spanish) have a short of frozen in time quality. I know more about Ladino because I know Spanish and am always interested in romance languages. Many (though by no means all) of the differences between that and modern Castilian are that Ladino has not kept current with Spanish phonetic changes from the 1500s onwards. I believe I'…
There’s a large group of Ladino speakers in Turkey.