Historical clue formulations

• Five, in French — 2021-09-20
• Deux + trois — 2015-03-18
• Quarter of vingt — 2013-05-18
• Half of dix — 2013-03-20
• Dix halved — 2011-03-02
• Quatre + un — 2010-11-02
• V as in Versailles — 2010-08-26
• Quitting time in Québec, maybe — 2010-07-29
• Rouge roulette number — 2008-05-11
• Roulette play — 2007-06-16
• Rouge roulette number — 1997-12-05
• Roulette bet — 1997-05-23