Historical clue formulations

• Russian ethnic group — 2019-02-03
• 13th-century invaders — 2014-12-24
• Golden Horde members — 2014-10-28
• Turkic people — 2009-05-19
• Certain Crimeans — 2008-11-13
• Dwellers along the Volga — 2007-12-17
• Turkic people — 2005-08-28
• Citizens of Naberezhnye Chelny, e.g. — 2003-07-12
• Some Crimeans — 2002-10-29
• Some Russians — 1999-05-08
• Dwellers along the Volga — 1997-03-19
• Some Russians — 1996-02-17
• 13th-century invaders — 1994-11-22