Yaakov Yisrael Kanievsky
Rabbi Yaakov Yisrael Kanievsky (Hebrew: יעקב ישראל קַנִיֶּבְסְקִי), known as The Steipler or The Steipler Gaon (1899–1985), was an ultra-Orthodox rabbi, Talmudic scholar, and posek ("decisor" of Jewish law), and the author of Kehilos Yaakov, "a multi-volume Talmudic commentary." 
The Steipler was born in the Ukraine to Rabbi Chaim Peretz Kanievsky, a Chernobyl Chassid and the local shochet, and the latter's second wife Bracha.[a] It was the family's subsequent move to the town of Hornostaypil, from which his appellation, "the Steipler", was later derived.
Around the age of 11 Rabbi Kanievsky entered the Novardok Yeshiva in Navahrudak, studying under its famed Rosh yeshiva, Rabbi Yosef Yoizel Horowitz. By age 19, having progressed rapidly and gained a reputation as a Talmid Chacham, he was recommended by Rabbi Horowitz "to head a yeshiva in Rogatshov" - as a branch of Horowitz's yeshiva.
Once, during his stint, Rab Kanievsky was Court-martialled for "failing to do his duty" when there was a possibility of breaking the Sabbath. He was forced to walk between two rows of soldiers who were ordered to beat him as he passed. In later years, Rabbi Kanievsky remarked that the satisfaction he had enjoyed for making a stand for his religious convictions was an achievement never again equaled for the rest of his life; earlier he had insisted on wearing a summer uniform in the winter since there was no problem of shatnez .
After serving under arms for some time, Rab Kanievsky managed to get discharged. He decided to move to Białystok in Poland, in order to continue learning Torah unhindered from Communist interference. There, he studied under Rabbi Avraham Yoffen.
In 1922 (1925), Rabbi Kanievsky published his first sefer ("book"), Sha'arei Tevunah ("gates of understanding"). This was received with great acclaim, and the work eventually reached Rabbi Avraham Yeshayahu Karelitz (known as the Chazon Ish) in Vilna. Without even meeting him, Rabbi Karelitz decided that the author of such a work was worthy of marrying his sister Miriam. Their father was Rabbi Shmaryahu Yosef Karelitz (1852 - 1916) the rabbi of Kosova (now Belarus) for thirty-four years, the father of the Karelitz family, which brought together prominent rabbis and Torah scholars.
Rabbi Kanievsky was then appointed rosh yeshiva of the Novarodok yeshiva in Pinsk. He read each Shabbos from the V'Higadeta series, authored by his friend from Novardok yeshivah, Yaakov Galinsky.
The Land of Israel
Rabbi Kanievsky is notable for having never left Israel for even a brief visit abroad since his arrival.
In 1934, at the urging of his brother-in-law, the Chazon Ish, he left Poland and moved to Israel, settling in Bnei Brak, where his brother-in-law, Rabbi Karelitz, had already been living for about eight months. Immediately upon his arrival he was appointed Rosh Yeshiva of Yeshivas Beis Yosef - Novardok in Bnei brak (the first Yeshiva Gedolah in Bnei Brak and one of the oldest yeshivas in the new settlement in the 20th century). For many years, he was head of two yeshivas there. Rabbi Kanievsky referred to the Chazon Ish as his "rabbi and mentor," who in his final years lived with the Kanievsky family, where Rebbetzin Miriam ran the communal household. Alongside Rabbi Elazar Shach, Rabbi Kanievsky was considered the spiritual leader of the Lithuanian ultra-Orthodox community. Though known as a world-class scholar, he shunned publicity, and lived in humble surroundings, teaching, writing, and devoting himself to Torah and good deeds. He was one of the presidents of Kollel Chazon Ish and a member of the Asra Kadisha organization.
The Steipler was high-level hearing-impaired and therefore those who turned to him would write their question or request and he would reply and bless them after reading the script. In his last decades, after the Beit Yosef Yeshiva was closed, he performed a yearly shiur at the Kollel Chazon Ish on the death anniversary of the Chazon Ish, with the participation of a large public.
He died on Friday night, 23rd of Menachem Av, 5745 (1985), with over 150,000 mourners attending his funeral. He was buried in the Shomrei Shabbos cemetery in Bnei Brak, near the tomb of the Chazon Ish. His son, Rabbi Chaim Kanievsky, following in his father's path, is a world-renowned Haredi rabbinical authority. He also has a daughter who currently lives in Bnei Brak.
The Steipler strongly criticized the Poalei Agudat Yisrael party, calling it "of the parties who damage in the vineyard of the House of the Lord", and added: "When we be granted the salvation, this party will be on the side of those who ruin and destroy religion." On the leaders of the party he wrote that they "corrupted and turned it into a distinct-materialistic party ... and they put venom of "אשר קרך" into their ranks," and on its voters he wrote that they "violate the name of God in secret and in multitude".
In the 1984 elections, he joined Rabbi Shach's view and announced, "My family and I will vote Shas." This was the beginning of the process that led to the split of Agudat Yisrael and the establishment of Degel HaTorah prior to the 1989 elections.
The "Kehilot Yaakov Street" in the "Merkaz Baalei Melacha" neighborhood of Bnei Brak was named after him, after his demise, and the neighborhood was also renamed to "Kehilot Yaakov". The Lithuanian community in this neighborhood is called "Mishkenot Ya'akov" after him. In addition, the Yeshivat Kehilot Yaakov was established in his name, which was located in Hazon Yehezkel and moved to Modi'in Illit, as well as Yeshivat Tifereth Yisrael in the Givat Shaul neighborhood of Jerusalem. The name of the "Derech Emet" Talmud Torah in Petach Tikvah was changed to "Birchas Yaakov" after him and the Talmud Torah network Tiferet Yaakov in Bnei Brak and Jerusalem is named after him.
The Steipler wrote many works, his magnum opus being the multi-volume Kehillos Yaakov ("assembly of Jacob"), containing his unique analysis of most of the tractates and concepts of the Talmud; one volume he composed while in the army.
He also authored Birkas Peretz (on the Torah) and Chayei Olam. There are several volumes of letters, known as Karyana D'Igarta, and several volumes written by a disciple, Rabbi A Horowitz, describe his daily life. These are known as Orchos Rabbeinu.
Rabbi Kanievsky's Eitsot V’Hadrachot contains "letters to an American psychologist, Dr. Yaakov Greenwald, in which The Steipler advises him on psychological problems."
- "Rabbi Yaakov Yisrael Kanievsky, the Steipler".
... Yaakov Yisrael Kanievsky (1899 - 1985)
- "Rabbi Yaakov Yisrael Kanievsky (The Steipler) (1899-1985)". JewishVirtualLibrary.org.
- Marek Cejka; Roman Koran (2015). Rabbis of our Time: Authorities of Judaism. ISBN 1317605446.
Rabbi Kanievsky was an important figure and halachic authority (posek)
- 19 volumes
- "Jewish History: Av 23". AISH.com.
- "His father was widowed at age 60, and then ..."
- "Hebrew Kehillot Yaakov by Yaakov Yisrael Kanievsky the Steipler".
Steipler .. born in the Ukrainian town of Hornostaypil
- "Invitation to the Wedding of the Steipler with the Sister of the Chazon Ish". Kedem Auction House website
- "V'Higadeta-Elul & Rosh Hashanah: HaRav Yaakov Galinsky zt"l".
Rav Yaakov Galinsky fulfilled the directive of the Steipler, Rav Yaakov Yisrael Kanievsky, zt"l, whom he knew in the Novardok yeshivah in Bialystok
- "V'Higadeta-Bereishis: HaRav Yaakov Galinsky: 9781600915383".
Every Shabbos the Steipler Gaon made time for oneg Shabbos he would read from Rav Yaakov Galinsky's V'Higadeta series.
- "RABBI YAAKOV YISRAEL KANIEVSKY (1899-1985)".
In 1934, his brother in law, the Chazon Ish, who had already been living in Palestine for a while, urged Rabbi Yaakov Yisrael to join him.
- Rabbi Zacharia Fishman, "צום אפפאר קיין ארץ־ישראל פון דעם ר"מ בּישיבת פינסק" (news of his immigration to Bnei Brak, Israel in a local Jewish newspaper in Pinsk), Pinsker Vort, February 23, 1934.
- "The Steipler, on his 28th Yartzeit".
- "השקפתנו" (Our Perspective) Part C: Chapter 6: Letter of Nisan 5732-1972.
- "Our Perspective" Part I, Chapter: The PAI Movement: A Letter from Av 5721-1961