Where did the idea of doing a Seder on Tu b'Shvat come from? Why a Seder, not just the eating of fruit? Why do we call it a Seder if there is no formalized way of doing it?
What is the significance of Tu B'Shvat? How was it celebrated through history, and was it celebrated through history? What are the Halachic torah sources for Celebrating it? Why the recent ...