When Jews first started establishing communities south of the equator, they must have noticed that the holidays fell completely at the wrong times of the year. (For example, Pesach, referred to as hag ha-aviv, would be in the fall in the southern hemisphere). While they obviously kept the holidays where they are now, I feel that there must have been some discussion of this fact. Anyone know of anything?
Update/Clarification: I know there are many possible answers to the puzzle of what Jews should so in the southern hemisphere. I'm interested in the reasoning of rabbinic authorities at the times when these communities were first established. Especially if you have sources I can read.