Rabbi Chananya ben Tradyon, one of the "Ten Martyrs" (see entry for Sivan 25) was killed on this date. When the Romans discovered him teaching the outlawed Torah they wrapped him in a Torah scroll, piled bundles of twigs around him, and before setting him afire they placed damp woolen cloths on him to prolong the agony of being burned to death.
As the flames engulfed him, his disciples asked him, "Master, what do you see?" Rabbi Chananya replied: "I see a scroll burning, but the letters flying up to Heaven."
This Shabbat is Shabbat Mevarchim ("the Shabbat that blesses" the new month): a special prayer is recited blessing the Rosh Chodesh ("Head of the Month") of upcoming month of Tammuz, which falls on Wednesday and Thursday of next week.
Prior to the blessing, we announce the precise time of the molad, the "birth" of the new moon.
Click here for molad times.
It is a Chabad custom to recite the entire book of Psalms before morning prayers, and to conduct farbrengens (chassidic gatherings) in the course of the Shabbat.
During the summer months, from the Shabbat after Passover until the Shabbat before Rosh Hashahah, we study a weekly chapter of the Talmud's Ethics of the Fathers ("Avot") each Shabbat afternoon; this week we study Chapter Three.