Sephardi Jews "liturgical tradition") used by Sephardi Jews in their Siddur (prayer book). A "nusach" is defined by a liturgical tradition's choice of prayers, order of prayers, text of prayers and melodies used in the singing of prayers. Sephardim traditionally pray using "Minhag Sefarad." The term "Nusach Sefard" or "Nusach Sfarad" does not refer to the liturgy generally recited by Sephardim proper or even Sephardi in a broader sense, but rather to an alternative Eastern European liturgy used by many Hasidim who are in fact Ashkenazi. Additionally, Ethiopian Jews, whose branch of practiced Judaism is known as Haymanot, have recently come under
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