Bulgarism is a political movement for the use of the Bolgar ethnonym among Kazan Tatars. It rejects the use of Tatar in favor of the Volga Bulgars, who are considered to be the ancestors of modern-day Volga Tatars. Therefore, Bulgarism is a narrow term for those Volga Bulgarians refusing to be called "Tatars".… (More on Bulgarism)