Everything on UESP are canon here, in addition to user created content in our factbook and characters tab.

Try starting from [url=http://www.uesp.net/wiki/Lore:Elsweyr]Elswyer[/url] and [url=http://www.uesp.net/wiki/Lore:Khajiit]Khajiit[/url], and also read over the [url=http://www.uesp.net/wiki/Lore:Fourth_Era]4th era[/url].