Study Guide Rosh Hashanah 12 Pictures Today’s daf is sponsored anonymously in memory of the Chazon Ish, Avraham Yeshaya ben Shmaryahu Yosef. Rabbi Eliezer said that on the 17th of Marcheshvan the flood began and that God changed the rules of nature. Two questions are asked about this: 1. It is written in the second month and that it is Iyar.  2. What is the change from the rules of nature - after all, rains fall in Marcheshvan and Kima rises during the day during this period and from there the rains came. They answer that second is second to the judgment (In Tishrei the previous year it was decreed that there would be a flood). And the change from nature was that boiling water came down. In a braita, it appears that the sages of Israel count the years from the creation of the world from Tishrei but for the tekufa, from Nissan. And the nations of the world count from Nissan. The Gemara goes back to the Mishna and discusses the next line: vegetables. A braita is brought, where both vegetables and tithes appear - if a vegetable means for tithing, why are both mentioned? The Gemara distinguishes between those who owe tithes from the Torah (grains, grapes, and olives) and those from rabbinic law (vegetables). Why is everything written in the plural form - vegetables, tithes? What is the relevance of the first of Tishrei being the Rosh Hashanah for tithes? One, one cannot tithe produce from one year to the next, and two, for determining years as to which tithe is brought - the second tithe or a poor tithe. Where do we learn that in a year when there is a tithe for the poor one does not take the second tithe but one still takes the first tithe to give to the Levites? In the braita quoted earlier, vows also were mentioned. What is this relevant for? And why did is it Tishrei and not Nissan? Because regarding vows we go by the language of people generally use and people generally consider Tishrei the first day of the year. The Gemara quotes a Mishna in the matter of tithes which discusses the stage of growth in which it is determined to which year it belongs. From where is this derived?