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
Matzo Whole wheat, bran and organic matzo are also available. Chocolate-covered matzo is a favorite among children, although some consider it "enriched matzo" and will not eat it during the Passover holiday. A quite different flat confection of chocolate and nuts that resembles matzo is sometimes called "chocolate matzo". Matzo contains typically 111 calories per 1-ounce/28g (USDA Nutrient Database), about the same as rye crispbread. "Shĕmura" ("guarded") matzo ( "matsa shĕmura") is made from grain that has been under special supervision from the time it was harvested to ensure that no fermentation has occurred, and that it is suitable for eating