The rate increased in 1921 when the United States imposed quotas on its immigration. Ten thousand arrived from Eastern Europe to the port of Veracruz at the invitation of President Plutarco Elías Calles. Jewish organizations such as the Comité de Damas and North American B'nai B'rith were formed to help the new arrivals adapt. In the 1920s, the Jewish community grew and prospered in Mexico. The immigration rate slowed after 1929 because of the Great Depression and new immigration policies which favored those with a more similar ethnic and religious background to that of Mexico. Most of the Jewish communities’ social and religious organizations were formally founded in the first half of the 20th century. These include the Sociedad Beneficiencia Alianza Monte Sinaí (1912), the Young Men's Hebrew Association in Mexico City. (1917), the first K’tav or Jewish religious school (1917), the first federally recognized synagogue under the terms of the Constitution of 1917 (1918), the Talmud Torá Hatihiá (1919), the Congregación Nidje Israel for Ashkenazi Jews (1922), the first Zionist organization (1922), the first Ashkenazi religious school (1922), the Asociación Cultural IL Peretz Farein, later called the Idisher Kultur Guezelshaft (1922), the Har Sinaé synagogue for the Damascus Jewish community, (1923), the first Keren Hayeson or campaign for the National Fund for Palestine (1923), the Centro Israelita and first synagogue in Monterrey (1923), the Colegio Israelita de México (1924), the Agudat Ajim community in Guadalajara (1923), the Bnej Kedem Sephardic community Center (1926), the Nidje Israel Ashkenazi cemetery (1929), the Cámara Israelita de Industria y Comerico in Méxicoand the Unión de Literatos y Artistas Judíos (1931), the Federación de Sociedades Israelitas de México (1932), the Colegio Israelita Hatikva in Monterrey (1932), B'nai B'rith (1934), the Sociedad de Beneficiencia Sdadá Umarpé for the Aleppo Jewish community, today the Comunidad Maguén David (1938) and the first Zionist convention (1938) .