I have no idea how this will work with YOUR players, but to get them involved in the creation process how about asking them for at least one idea they'd like to see for each of the categories you come up with for your bible. From your original list- each player gives you one government system, a type of city, an NPC or two, an interesting location and a culture. I'd skip any kind of "comprehensive" history input from them but perhaps they have an idea or an isolated incident you could work into your history.
So you might get things like...
Government - a Meritocracy where the council of rulers is selected by a series of mental, physical and moral tests. Performing well in different areas determines what position one takes.
City - a pirate "city" in a fog shrouded sargasso of lashed together shipwrecks hidden somewhere in a vast ocean.
Famous npc - an infamous sage who can always be found at the capitol city's library. He's always there because he's a ghost who died years ago when his obsession to learn EVERYTHING kept him from eating and he just wasted away, but he never left. Nobody has tried to get rid of him because if he can be approached in just the right way he can answer almost ANY question.
Famous location - The forbidden Green Mountains of the elves aren't really mountains- they're a huge grove of trees that have grown so large and so close together that from a distance they seem like a mountain chain. Sunlight never reaches the forest floor and hideous, monstrous things rule there. The elves condemn there worst criminals down into the dark to die- but several of them survived and these are the "dark" elves.
Culture - A society that gave up war in favor of resolving conflicts via gladiatorial combat. Chosen combatants, and sometimes whole squads, fight to determine who is the victor in what used to be a huge bloody war. But the system has become so easy that "wars" are fought for increasingly petty problems.
... and then you work them into your setting, in however a big or small way you choose. They won't be creating your whole world, but they'll have a few touches in it that they'll recognize when they come across them. That will automatically give them some "buy in" and extra interest in what's going on.