Leopoldstadt of the main train stations at which migrants from other parts of the empire arrived in Vienna. The high number of Jewish inhabitants led to the area being called "Mazzesinsel" ("Island of Matzo", referring to the unleavened bread eaten during Passover). Several important synagogues were located there, including the Schiff Shul, the Leopoldstädter Tempel, the Türkischer Tempel, the Polnische Schul, and the Pazmanitentempel, as well as yeshivas. None of the synagogues escaped the destruction during the "Kristallnacht" pogroms of November 1938 following the annexation of Austria by Nazi Germany. A fragment of a Torah scroll was saved by Heschel Messias
Ancient Israelite cuisine wafers ("rekikim") smeared with oil baked in an oven. There were also baked goods, all made of wheat flour and baked in an oven, which were not burned on the altar. These were the twelve unleavened and specially shaped showbreads, eaten by the priests after they had been displayed; two loaves of leavened bread prepared for the festival of Shavuot and eaten by the priests; thanksgiving breads, which included leavened bread, unleavened bread, unleavened wafers and scalded loaves, with one of each kind given to the priests and the remainder eaten by the owner and guests; and the unleavened loaves