Historical clue formulations

• Stymie — 2025-08-17
• Prevent from happening — 2019-09-23
• Upset, as plans — 2019-04-23
• Block — 2013-11-01
• Baffle — 2012-12-07
• Foil — 2001-10-14
• Foil — 1999-12-07
• Stymie — 1994-10-10
• Block — 1994-03-14