The League of Jewish Women in Germany (German: Jüdischer Frauenbund, JFB) was founded in 1904 by Bertha Pappenheim. Pappenheim led the JFB throughout the first twenty years of its existence, and remained active in it until her death in 1936.[1] The JFB became increasingly popular through the 20th century. At its peak in 1928, the organization had 50,000 members from 34 local branches and 430 subsidiary groups. At the time, the JFB was Germany's third largest Jewish organization, with 15–20% of Jewish women in Germany becoming members.[2]