Jews, the First Crusade, and the Culture of Ashkenaz After a discussion of Jewish communal structure in the medieval era, we will look at the devastation of the First Crusade and the Rhineland Massacres of 1096, follow up with some thoughts on the long-term impact on Ashkenazi Culture. Premiering today at 1 pm. 65. Premodern Jewish Communal Structure 66. The First Crusade and the Jews 67. Ashkenaz after the Crusades Share this:TwitterTumblrFacebookLinkedInEmailRedditLike this:Like Loading...