They testified about the boards of professional bakers (on which loaves of bread are shaped) that they are [susceptible to be-coming] tamei, for R' Eliezer rules [them] tahor. They testified about an oven that someone cut into sections and put sand between one section and the other, that it is [susceptible to becoming] tamei, because R' Eliezer rules [it] tahor. They testified that we may intercalate [a month into] the year during the entire Adar, because [the Sages] used to say: until Purim. They testified that we may intercalate [a month into] the year conditionally; and a story happened with Rabban Gamliel that he went to obtain authorization from the governor in Syria and was delayed in coming [back], and they intercalated [a month into] the year with the stipulation that Rabban Gamliel would approve it, and upon his returning, he declared: “I ap-prove,” and it turned out that it became a leap year.