Liannis was never expansionist, content to keep its hereditary bounds. For most of its history, it was a fairly harmless kingdom, with more than its fair share of scholars and Schools of Formulaic Magic, especially in the capital. Said capital was Liannis' only true claim to fame; a city built at the base of a cliff, with a very extensive library honeycombing the cliff-face above, designed to make the cliffside look like a giant scroll rack.
The last few years before the advent of Stranger's empire saw huge changes in Liannis. A hard-line church of the Lawful Host from a neighboring kingdom gained a foothold in the citizenry, playing on their fears of the unknown and highly educated, and formed a religious inquisition.
Even this would possibly have passed without comment, and the Iron Flag never have come into being, if they hadn't started burning books.