[@WrongEndoftheRainbow] I'm not sure how this thing is going to be, but if it's anything like wikipedia...

The best place to start would be with Fate and Amul'Sharar (on whom there is very little information, of course), how everything started (i.e. the summoning of the gods and the creation of the Codex of Creation) and the subsequent creation of Arcon and Galbar. That will give a good overview of the universe's foundation.

Then one can move on to biographies of gods and demigods. Then on to the various things they created.

As others have noted, a lot of the basic information on the various characters exists in the character tab, so feel free to use that in building this thing up and changes should start dripping in over time.

and [@BBeast] while the character tab is doubtlessly a huge resource, at the moment it is very confusing. Some players have everything regarding their characters in their own tab, others don't, and it becomes irritating scrolling and clicking through Rtron's many posts to find the exact thing you're looking for (if a sheet for it even exists).
A system which is easier to navigate and more regularly updated (*looks at everyone accusingly while hiding the fact that he has a pile of stuff he needs to make sheets for*) will probably come in handy. And if this can in fact be published on wikipedia, we shall be on our way to international acclaim! (because wikipedia page = rolling in the fame right?)