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 is eaten, for which reason Passover is called the feast of unleavened bread in the Torah. Thus "matzo" (flat unleavened bread) is eaten during Passover and it is a tradition of the holiday. Historically, together with Shavuot and Sukkot, Passover is one of the Three Pilgrimage Festivals ("Shalosh Regalim") during which the entire population of the kingdom of Judah made a pilgrimage to the Temple in Jerusalem. Samaritans still make this pilgrimage to Mount Gerizim, but only men participate in public worship. The Passover begins on the 15th day of the month of Nisan, which typically falls in March or