Reply To: Should all Yidden know Hebrew?

Ashkenazim used to speak only Loshon Hakodesh on Shabbos – as evidenced by the 18th Century Song of R Levi Yitzchak of Berditchev, on Motzai Shabbos they would move back to “Loshon Ashkenaz” (it was only called Yiddish by secular nationalists at the end of 19th Century).