Ashkenazi Jews added to the history of German Jewry in modern times in the abstract of his seminal work, "History of the Jews", which he entitled "Volksthümliche Geschichte der Juden." In an essay on Sephardi Jewry, Daniel Elazar at the Jerusalem Center for Public Affairs summarized the demographic history of Ashkenazi Jews in the last thousand years, noting that at the end of the 11th century, 97% of world Jewry was Sephardic and 3% Ashkenazi; by the end of the 16th century, the: 'Treaty on the redemption of captives', by Gracian of the God's Mother, Mercy Priest, who was imprisoned by Turks,
Ethnoreligious group and ancestral ties. The legal assignement what is an ethnoreligious group can differ from the above given definition. Some ethnoreligious groups' identities are reinforced by the experience of living within a larger community as a distinct minority. Ethnoreligious groups can be tied to ethnic nationalism if the ethnoreligious group possesses a historical base in a specific region. In many ethnoreligious groups emphasis is placed upon religious endogamy, and the concurrent discouragement of interfaith marriages or intercourse, as a means of preserving the stability and historical longevity of the community and culture. Prior to the Babylonian exile the Israelites had already