Thank you for reading all that,despite of the mistakes - had only about 30 mins to write that.
I think I am allowed to say, that our wizards were around a long time before we came to control this world. For an example, it'll take more than 3 months to build a proper wizard tower with medieval technology. - They'd need atleast 3 months, probably more to convince enough people (20+ k) to join their "nations".