Historical clue formulations

• Blot — 2021-08-26
• Scarlet letter, e.g. — 2020-09-28
• Tough-to-remove stain — 2017-08-03
• Bad mark — 2016-12-28
• Mark of disgrace — 2015-11-09
• Stain on one's reputation — 2015-07-29
• Bad record, e.g. — 2011-02-13
• Hester Prynne's "A," e.g. — 2010-05-06
• Black mark — 2009-05-02
• Scarlet letter, e.g. — 2005-02-09
• The scarlet letter, e.g. — 2004-12-08
• Bad mark — 2004-09-20
• Black mark — 2003-08-05
• Black mark — 2001-10-27
• Blot — 1997-10-10
• Reputation harmer — 1995-06-06