The Fast on the Ninth of Av, is Tisha B’Av, a day to mourn and acknowledge the many tragedies that the Jewish people have endured — many of which have occurred on the ninth of Av. It occurs in July or August.
Tisha B’Av primarily commemorates the destruction of the first and second Temples, both destroyed on the ninth of Av. Other tragedies which occurred on this day, such as the expulsion of Jews from Spain in 1492 and from England in 1290 are remembered on Tisha B’Av as well.
Significance: Remembers major communal tragedies
Oberservances: Fasting; reading the book of Lamentations
Length: 25 hours
Customs: Torah cabinet is draped in black cloth