Ninth of Ab, also known as Tisha B'Av, is recognized as a day of mourning in Judaism. It commemorates the destruction of the First and Second Temples in Jerusalem. There are several synonyms for this significant day. Some call it the Day of Atonement, referring to the fasting and repentance practiced on this day. Others label it the Day of Distress as it marks the beginning of many historical tragedies in Jewish history. Some interpret it as the Day of Judgment since it is a time of reflection and introspection. Finally, some refer to it as the Day of Flames, recalling the burning of the Temple and other significant events that occurred on this date.