This day marks two seminal events in modern Jewish history:
- The passing of the great Lubavitcher Rebbe, Rabbi Yoseph Yitzchak Schneerson (ZY"A), in 1950.
- The ascension of his illustrious son-in-law, Rabbi Menachem Mendel Schneerson (ZY"A), to the role of Rebbe on the Tenth of Shevat in 1951.