Ashkenazi Jews Jews as an ethnic group. Moreover, though intermarriage among Jews of Ashkenazi descent has become increasingly common, many Haredi Jews, particularly members of Hasidic or Hareidi sects, continue to marry exclusively fellow Ashkenazi Jews. This trend keeps Ashkenazi genes prevalent and also helps researchers further study the genes of Ashkenazi Jews with relative ease. It is noteworthy that these Haredi Jews often have extremely large families. The "Halakhic" practices of (Orthodox) Ashkenazi Jews may differ from those of Sephardi Jews, particularly in matters of custom. Differences are noted in the "Shulkhan Arukh" itself, in the gloss of Moses Isserles. Well
Ethnoreligious group ethnoreligious groups are traditional Anabaptist groups like the Old Order Amish, the Hutterites, the Old Order Mennonites and traditional groups of German speaking Mennonites from Russia, like the Old Colony Mennonites. All these groups have a shared German background, a shared German dialect as their every day language (Pennsylvania German, Hutterisch, Plautdietsch) and a shared version of their Anabaptist faith, a shared history of several hundred years and they have accepted very few outsiders into their communities in the last 250 years. Modern proselytizing Mennonite groups, like e.g. the Evangelical Mennonite Conference whose members have lost their shared ancestry, their