This Thursday is the 9 of Av, commemorated as the fast of Tisha B'Av. 
Schedule of the Day:
Saturday Night:
10:30 PM: Reading of Eicha: Lamentations
To learn more about the Book of Eicha -Lamentations,
8:30 PM Mincha and Tefillin  followed by a film presentation
9:50 Maariv
Havdallah and break fast
What is commemorated on the 9 of Av?
Tisha B’Av is the saddest day on the Jewish calendar, on which we fast,
deprive ourselves and pray. It is the culmination of the Three Weeks, a period
of time during which we mark the destruction of the Holy Temple in Jerusalem.
On this day, numerous tragic events in our Jewish history transpired.
1313 BCE: The spies returned from the Promised Land with frightening reports,
and the Israelites balked at the prospect of entering the land. G‑d decreed that
they would therefore wander in the desert for 40 years. Read more.
Both Holy Temples in Jerusalem were destroyed on this date.
The First Temple was burned by the Babylonians in 423 BCE (read more) and the
Second Temple fell to the Romans in 70 CE (read more), unleashing a period of
suffering from which our nation has never fully recovered.
The Bar Kochba revolt against the Romans in 133 CE ended in defeat:
The Jews of Betar were butchered on the 9th of Av and the Temple Mount
was plowed one year later on the same date. Read more.
Later on in our history, many more tragedies happened on this day,
including the 1290 expulsion of England’s Jews and the 1492 
banishment of all Jews from Spain.