generate questions: Cossacks, although Slavic-speaking and Orthodox Christians, came from a mix of ethnic backgrounds, including Tatars and other Turks. Many early members of the Terek Cossacks were Ossetians.
Cossacks came from what backgrounds? {sep_token} Many early members of the Terek Cossacks were what? {sep_token} What religious affiliation did the Cossacks have? {sep_token}