Until 1594, as far as learned mortals knew, there were no real witches. The real witches were cunning enough to remain hidden for thousands of years privately practicing magic in the same ways their parents did.
In 1594 a trio of witches living in Scotland had enough of the false accusations mortals heaped upon one another. These witches finally made their presence known to spare the falsely accused.
The world changed forever in the days that followed as thousands of witches many with enough power to conquer and rule the planet stepped from the shadows and greeted their communities. In the years that followed many mortals shed their old ways and embraced the witches. This era was not without it's problems, but it was a peaceful time overall.
One day though, that generation of witches, content with the world they created, passed on. Their children tried to follow in their parents footsteps, but faltered more often. And the next generation strayed even further from their grandparents' vision.
350 years after those three witches took charge of the destiny of the world, it was recovering from the second Witch War. A group of witches that stayed neutral during the carnage took power and instituted a registration for witches at age 16; all powers would be documented. They promised that under their leadership things would not get out of control again.
It has been 75 years and things have not improved for the average mortal or witch. The registration is enforced with an iron fist and mortal distrust of witches is higher than it has been in centuries.
You have avoided the registration and would be branded a Wyld Witch if caught, but you have a small Coven that watches your back and with your unbridled powers you and your Coven can make allies, gain power and maybe even fix some of the problems you inherited.