Yomi (, "page [of the] day" or "daily folio"), a daily regimen undertaken to study the Babylonian Talmud one folio (a daf consists of both sides of the page) each day. Under this regimen, the entire Talmud is completed, one day at a time, in a cycle of seven and a half years. Rabbi Shapiro introduced his idea at the First World Congress of the World Agudath Israel in Vienna on 16 August 1923. The first cycle of Daf Yomi commenced on the first day of Rosh Hashanah 5684 (11 September 1923). Now in its 14th cycle, Daf Yomi has been taken up by tens of thousands of Jews worldwide. Yeshivas Chachmei Lublin Yeshivas Chachmei Lublin was, along with Daf Yomi, Shapiro's greatest achievement. He conceived of a yeshiva for Hasidic Poland, modeled on Lithuanian yeshivas such as Volozhin, Slabodka and Novardok, but which would train Hasidic rabbis as the next generation to lead Polish Jewry. The Yeshiva was housed in a massive building, housed hundreds of students, and had a vast library of over 100,000 books. On May 22–28, 1924, the cornerstone laying ceremony took place for the construction of the yeshiva building. Approximately 20,000 people participated in the event. The opening ceremony took place on June 24–25, 1930. Apart from thousands of local Jews, around 10,000 people arrived from all over Poland and abroad. Shapiro served as rosh yeshiva until his death. Łódź In 1932 Shapiro was approached by leaders of the Jewish Community of Łódź, who wanted to offer him the position of Chief Rabbi of Łódź. Many people wanted to appoint Rabbi Mendel Alter of Kalish, (b. 1877, Ger) the brother to the Gerrer Rebbe (and youngest son of the Sfas Emes) to this position. Rabbi Shapiro negotiated that a large part of his wage would go to pay off the debts that Chachmei Lublin was still struggling to pay off. Eventually it was decided to give it to Rabbi Shapiro. After all the protracted negotiation that went on to get Rabbi Shapiro into this position, he died three days after being appointed Chief Rabbi. Political activities Agudat Yisrael Whilst serving in Galina, Rabbi Shapiro began his involvement with Agudat Israel. He was present at its founding conference in 1912. In 1914 he was appointed head of the Education Department of Agudas Yisrael in East Galicia, becoming president in 1922 of Agudas Yisrael in Poland. He