Historical clue formulations

• Polite affirmation — 2025-02-09
• Formal affirmative — 2024-02-23
• Polite assent — 2022-08-09
• Polite affirmative — 2021-04-07
• Polite affirmative — 2017-03-27
• Gentleman's agreement? — 2015-04-03
• Reply to a schoolmistress — 2013-12-20
• Reply from a polite young'un — 2010-10-10
• Polite concurrence — 2007-07-09
• Polite agreement — 2005-08-17
• Affirmative for Huckleberry Finn — 2003-01-24
• Polite response — 2001-06-17
• Gentlemanly reply — 2000-06-18
• Polite response — 2000-06-17
• Gentlemanly reply — 1996-07-25