Passing of Rabbi Menachem Mendel of Kotzk (1787-1859), renowned Chassidic leader, and forerunner of the Ger chassidic dynasty and others.
Link: An Inward Focus
Rebbetzin Chaya Mushkah Schneerson (b. 1901), wife of the Lubavitcher Rebbe, passed away on the 22nd of Shevat of the year 5748 (1988). For more on the Rebbetzin, see link below. Chabad's annual international conference of sheluchot (woman "emissaries") is held on or near this date.
Links:
All about Rebbetzin Chaya Mushka
Watch: Personal Memories of the Rebbetzin
Noah was a tzadik, a very great man. He saved the entire world. But he didn't approach Abraham's greatness.
When G‑d told Noah to build an ark before the world would be destroyed, Noah built an ark.
But when G‑d told Abraham He was about to destroy the cities of Sodom and Gomorrah—cities corrupt and evil to the core—Abraham argued. He said, “Perhaps there are righteous people there! Will the Judge of All the Earth not do justice?”
Where Noah donned a warm coat for himself and his family, Abraham built a warm fire for the entire world.
Because Abraham felt a sense of ownership for the world in which he lived. If there was something wrong, it needed to be changed. Even if it had been decreed by the will of G‑d.