The ninth day of the month of Av is the major day of communal mourning in the Jewish calendar. Although a large number of disasters are said to have befallen the Jews on this day, the major commemoration is of the destruction of the First and Second Temples in Jerusalem in 586 B.C.E.
N.B.: Street closures will affect vehicle access to CRZ from the south this morning. See the parade route below, which includes nearby blocks of Hyde Park Boulevard and 53rd Street.