[Pluto]

To add some further insight into this, Thay liberated itself from Mulhorand many centuries ago and the countries have been at odds ever since, from out right war to detente where some trade can take place. To further seperate themselves from their old rulers, they took up the worship of the Faerun pantheon as opposed to the Mulhorandi pantheon. That is why you don't see many temples to their gods about Thay.

While the ruling class in Thay is Mulan, they do not make up the largest percent of the population. The Rashemi outnumber them, some as slaves and some as freemen working as merchants and what not. In Mulhorand the Mulan race makes up a sizable portion of the populace.