Please consider why your character might be a part of a caravan heading north through the Gamboge Firest to Ogburg in the Theocracy of the Pale. This is the situation when our story begins. Because the Theocracy of the Pale is somewhat oppressive, you may have to come up with something a little convoluted to justify your character's desire/need to go to the capitol of such a place.

For a detailed description of the human races of the Flanaess, please check this link and forgive the anime graphics. It is still an accurate description.

Feel free to poke around the internet for information on the Greyhawk setting when you are creating background detail for your character. My own campaign differs slightly from the sources out there, but any discrepancies can be explained as the difference between what a character "hears" about the world, and the ugly truth about it.