Contributors (A→Z)

The Open Siddur Project is a volunteer-driven collaboration between folk passionate about Jewish spiritual practice. Some are interested in the Siddur as a technology for preserving and disseminating an evolving history of Jewish ritual, practice, and sacred poetry. Others are energized by the design challenge of crafting Siddurim that function effectively for nurturing spiritual, emotional and creative intelligence. All of us see the potential that creative engagement holds for empowering students and teachers to take ownership of those ingredients comprising their shared cultural inheritance.

The Open Siddur is a non-prescriptive, non-denominational project whose only intent is to help revitalize Judaism by ensuring its collective spiritual resources — the creative content intended for communal use — remain free for creative reuse. The Open Siddur Project invites participation without prejudice towards ethnic heritage, skin color, nationality, belief or non-belief, sex, gender, sexuality or any other consideration. All we ask for is an intellectually honest commitment to the principles and sensibilities preserved in our mission statement.




United Nations Educational, Scientific, and Cultural Organization
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) based in Paris. Its declared purpose is to contribute to peace and security by promoting international collaboration through educational, scientific, and cultural reforms in order to increase universal respect for justice, the rule of law, and human rights along with fundamental freedom proclaimed in the United Nations Charter. It is the successor of the League of Nations' International Committee on Intellectual Cooperation.
United Synagogue of America
The United Synagogue of America was founded in 1913 as the association of Conservative synagogues in North America. It was organized by Rabbi Dr. Solomon Schechter, a Talmudic scholar and spokesman for the Conservative movement. Today, as the United Synagogue of Conservative Judaism, it serves as a resource to its 650 affiliated congregations across North America, helping them to enrich the Jewish lives of their members and fulfilling religious, educational and communal responsibilities. The organization contains administrative divisions for youth activities, Jewish education, adult studies, music, social action, dietary laws, and congregational standards. It is affiliated with the National Federation of Jewish Men’s Clubs, The Rabbinical Assembly, and the Women’s League for Conservative Judaism.
Isser Yehuda Unterman
Rabbi Isser Yehuda Unterman (איסר יהודה אונטרמן‬, April 19, 1886 – January 26, 1976) was born in Brest-Litovsk, now Belarus. He studied at the Etz Chaim Yeshiva in Maltsch under Rabbi Shimon Shkop. Returning to Lithuania to complete his studies, Unterman was ordained as a rabbi by Rabbi Refael Shapiro, and by Rabbi Simcha Zelig Reguer, the Dayan of Brisk. He founded his own yeshiva in the town of Vishnyeva around 1910. Unterman served a variety of roles in the Lithuanian Jewish community until 1924, when he was selected to become the head rabbi of Liverpool. Unterman served in Liverpool for 22 years, becoming an important figure in the English Zionist movement and working to relieve the suffering of refugees in England during the Second World War. In 1946, Unterman became the Chief Rabbi of Tel Aviv, a position he held for twenty years before being appointed the Ashkenazi Chief Rabbi of Israel in 1964 (which he held until 1972).
Ben Tsiyon Meir Ḥai Uziel
Ben-Tsiyon Meir Ḥai Uziel (Hebrew: בן ציון מאיר חי עוזיאל‬, born 23 May 1880, died 4 September 1953) was the Sephardi chief rabbi of Mandatory Palestine from 1939 to 1948, and of Israel from 1948 until his death in 1953. In 1911, Uziel was appointed Hakham Bashi of Jaffa and the district. There he worked closely Abraham Isaac Kook, who was the spiritual leader of the Ashkenazi community. Immediately upon his arrival in Jaffa he began to work vigorously to raise the status of the Sepharadi, Temani, and other non-Ashkenazi communities there. In spirit and ideas he was close to the Kook, and their affinity helped to bring about more harmonious relations than previously existed between the two communities. Uziel was an advocate for strong relationships between the indigenous Arab population of the new State of Israel and Jews. He spoke fluent Arabic, and believed in peace and harmony between the two parties.

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