Umm - yeah, that was me getting all wildly detailed :-). It's fun for me - if it isn't fun for you remember nobody says you HaVe to justify everything ! One aspect of what I did in that thread was land was pretty well distributed around the globe. If you make a couple of basic decisions about size of your continent, you'll be able to figure whether it dominates the weathermaking systems, or if it's more like an island in a mostly ocean globe. "Course at a lot of stages of societal development, hiding another major continent or three 'round the back side of the world wouldn't have much effect on the one you're concentrating on. How 'bout it - are your people Great Navigators who would have already bumped into a new world on the way to Cathay, or are they landlocked geologinoobs, who aren't even too certain the world is round?