In 1919, Hadassah organized the first School Hygiene Department in Palestine to give routine health examinations to Jerusalem school children. During the Arab riots of 1920, Hadassah nurses cared for the wounded on both sides. Henrietta Szold also moved to Jerusalem that year to develop community health and preventive care programs. Back in New York in 1920, Alice Seligsberg formed Junior Hadassah, which provided innovative programs for young women who wanted to participate in Hadassah's Zionist mission. In the same year, Henrietta Szold moved to Palestine to lead the medical work started by the Unit. She remained based in Jerusalem until her death in 1945.