The 10th day of the Jewish month of Shevat
in Hebrew) is a most significant date on the chassidic calendar.
It is the anniversary of passing (yahrtzeit)
of the sixth Lubavitcher Rebbe
, Rabbi Yosef Yitzchak Schneersohn
(1880–1950), of righteous memory.
It is also the day when, in 1951, the seventh Rebbe
, Rabbi Menachem Mendel Schneerson
(1902–1994), of righteous memory, formally accepted the leadership of Chabad-Lubavitch
with a historic discourse (maamar)
at a gathering marking the first anniversary of his predecessor’s passing.