So in today's iteration of the Worldbuilding Blogfest, we're delving into the history (and politics) of the world in my current WIP. The politics aren't so different from actual modern-day NYC, and on a broader spectrum the US (as in the federal government has way too much power, and despite this the City was cleaned up greatly within the last several years by an amazing mayor). The only additional political structure in my books are the interactions between various fantasy races/species who may or may not have them in real life, we can't tell.
'What are you talking about' you say. Cats and dogs. In my book, they can talk, but only other animals who can talk and humanoids that can use magic hear them. So it's well known to the magi community that cats really are annoying, using any means they can to find a mage owner so they can tell them exactly when/where to scratch and exactly when/what to feed them. They look down on dogs, who (while their intelligence levels on average are lower than cats, but border collies and dogs like them have higher ones) are easier to please and don't spend their life fretting over getting someone who can understand them, they just enjoy the person they get.
And because you all liked my picture yesterday so much:
On to the fantasy creatures. From now on I will be blending the history of these creatures and the politics of their societies.
There are five ages of man, as in Greek mythology. A basic understanding of them may be gathered here. They will be referenced in the demon paragraph.
Grotesques, or living gargoyles, were created back in the time of St Romanus (the year 625 AD or so), who claimed to have created the first gargoyle out of La Gargouille, a dragon who'd rampaged his people (magi know it wasn't him). No one knows who the real benefactor was, but grotesques were created to ward off evil. They were annoyed with this duty, though, and avoid it when possible (by hanging around places they don't think evil will strike), instead playing tricks on people and each other, and using their ability to hang off buildings to spy on people.
The first devils were the fallen angels, Lucifer and 1/3 of all the angels at the time, who were tossed out of heaven and into Tartarus. Lucifer is the only surviving devil of these originals, though one other lasted almost as long as he (more about him in the next paragraph). Devils are immortal, but living as long as they do tends to drive them nuts, so they end up putting themselves in the way of death or suffering a transformation (again, more on this later). They are infertile amongst themselves, so they use succubi to procreate, and legal contracts to gain firstborns. These children go through a test when they are about 18 (or later if they've been doing poorly), to become a fully-fledged devil. Devils got out of Tartarus by betting God they could corrupt humanity, and Him putting a door on their plane of hell and saying, "So try it."
The first demons were the people from the Golden Age. After becoming nice guardians of the other ages of man, they became bitter at seeing each new age being crappier than the last. They decided it would be more worth their time to torture mankind and wreak havoc. Lucifer's second-in-command was the next to become a demon, going mad from the pointlessness of the devils' goal. The people of the Bronze Age also became demons, and a few from the Heroic Age. Demons also breed with the people put in Gehenna that they torture.
Magi have successfully blended into society since the Salem Witch Trials. Many enchanters go into politics, but rarely for the good of humanity. Enchanters tend to be extremely self-centered.