Historical clue formulations

• Czar's decree — 2015-12-13
• Czar's edict — 2014-11-19
• Decree — 2014-07-10
• Decree — 2010-12-26
• Decree — 2007-04-01
• Imperial pronouncement — 2005-11-27
• Decree — 2005-04-03
• Decree — 2005-01-29
• Decree — 2004-10-09
• Decree — 1998-08-02
• Pronouncement — 1998-05-31
• Imperial decree — 1997-04-02
• Proclamation — 1996-07-19
• Edict — 1995-11-23