Historical clue formulations

• Scourge — 2025-12-22
• Constant nuisance — 2025-09-07
• ___ of one's existence — 2023-05-08
• Scourge — 2022-09-07
• ___ of one's existence — 2022-03-28
• Nemesis — 2021-10-27
• Source of ruin — 2021-08-06
• The ___ of one's existence — 2021-06-14
• Scourge — 2020-11-24
• Cause of ruin — 2020-07-29
• Scourge — 2020-06-04
• Bête noire — 2020-04-26
• Scourge — 2020-03-15
• ___ of one's existence — 2020-02-04
• Cause of ruination — 2020-01-14
• Bête noire — 2018-11-25
• ___ of one's existence — 2017-06-19
• Scourge — 2015-09-27
• Plague — 2015-02-19
• Source of misery — 2014-01-06
• ___ of one's existence — 2013-12-30
• Deadly poison — 2013-06-24
• "The Dark Knight Rises" villain — 2013-05-02
• ___ of one's existence — 2013-04-23
• Constant nuisance — 2013-01-08
• Ruination — 2012-12-23
• Source of ruin — 2012-02-07
• Curse — 2012-02-02
• Ruin — 2010-11-24
• Unhappy influence — 2010-10-16
• Anathema — 2010-09-24
• Poison — 2010-02-06
• Scourge — 2009-04-02
• Ruination — 2008-12-28
• Blight — 2008-11-15
• Cause of one's undoing — 2006-05-25
• Cause of distress — 2005-09-05
• Ruin — 2004-11-21
• Undoing — 2004-05-04
• Witch's brew — 2004-03-26
• Cause of misery — 2003-12-20
• Curse — 2003-10-26
• Bête noire — 2001-12-14
• Ruination — 2001-09-30
• Deadly poison — 2001-01-29
• Ruination — 2000-12-19
• Ruination — 2000-08-23
• Curse — 2000-07-22
• Deadly poison — 1999-03-17
• Spoiler — 1998-02-14