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
Passover contains an instruction to eat matzo, specifically, on the first night of Passover and to eat only unleavened bread (in practice, matzo) during the entire week of Passover. Consequently, the eating of matzo figures prominently in the Passover Seder. There are several explanations for this. The Torah says that it is because the Hebrews left Egypt with such haste that there was no time to allow baked bread to rise; thus flat, unleavened bread, matzo, is a reminder of the rapid departure of the Exodus. Other scholars teach that in the time of the Exodus, matzo was commonly baked for