Hadassah was founded in 1912 by Henrietta Szold and 12 members of the Daughters of Zion Study Circle who dedicated themselves to "the healing of the daughter of my people." It has grown to be the largest Jewish women's volunteer organization in America with more than 300,000 members. Membership spans generations: mothers, daughters, and granddaughters carry on a Jewish tradition of service. Working not only in their own communities, the women of Hadassah have been bringing state-of-the-art medical facilities and health technology to Israel as well as educating and retraining generations of immigrants and native Israelis. At the extensive and widely respected Hadassah Medical Organization in Jerusalem, Jewish, Moslem and Christian professionals work together in a city torn by centuries of religious and ethnic conflict.