They have welcomed Jews of all backgrounds into their midst, which has allowed tremendous growth over the years. In 1938 Jewish immigrants from Aleppo set up Sociedad de Beneficencia Sedaká u Marpé, which evolved into a separate Jewish community: since 1984 it has been known as Comunidad Maguen David. Monte Sinai and Maguen David are now the largest Jewish communities in Mexico, having more than 30 synagogues, a community center and a school each, with Maguen David having at least 5 schools and plans for more (Colegio Hebreo Maguen David, Yeshiva Keter Torah, Beit Yaakov, Emek HaTorah, Colegio Atid and Colegio Or HaJaim).