Unlike other groups which formed yeshivas in pre-war Poland, Belz maintained a unique "yoshvim" program, developed by Rabbi Yissachar Dov, which produced many outstanding Torah scholars. The "yoshvim" were married and unmarried men who remained in the synagogue all day to study the Talmud, pray, and derive inspiration from their Rebbe. They were supported by local businessmen, and their food and other necessities were brought to them so they wouldn't have to leave the synagogue for even a short time. Some "yoshvim" even slept in the synagogue on benches. They typically remained in this program until the Rebbe would tell them to return home to their wives and families.