Both Alsatian and Standard German were for a time banned from public life (including street and city names, official administration, and educational system). Though the ban has long been lifted and street signs today are often bilingual, Alsace-Lorraine is today very French in language and culture. Few young people speak Alsatian today, although there do still exist one or two enclaves in the Sundgau region where some older inhabitants cannot speak French, and where Alsatian is still used as the mother tongue. A related Alemannic German survives on the opposite bank of the Rhine, in Baden, and especially in Switzerland. However, while French is the major language of the region, the Alsatian dialect of French is heavily influenced by German and other languages such a Yiddish in phonology and vocabulary.

Which two dialects were banned from public life?