A new mishnah! What is considered a "large city"? [Including What's What on the "10 batlanim"] And how these days of gathering carry implications as joyous days (with regard to fasting and eulogies). Plus, several statements in the name of R. Abba (and R. Shmuel), on how we keep track of time. Also, the actions of R. Yehudah HaNasi... On Purim specifically, and the many actions that bring joy... and when we fast, and more. Why was planting on Purim acceptable?