I’d like to recommend this really interesting session by Qesher about Jewish languages around the world: "Throughout history, Jews around the world have spoken many languages. In this multimedia session, you will learn what these languages have had in common and how they are currently shifting. The past two centuries have led to major changes in the linguistic profile of Jewish communities. Several long-standing Jewish languages have become endangered and new Jewish language varieties are developing." https://www.facebook.com/events/832317011047216