Historical clue formulations

• Calms — 2026-06-21
• Tranquilizes — 2025-12-16
• Preps for surgery — 2024-01-12
• Gives a number? — 2017-01-07
• Calms — 2015-11-21
• Calms down — 2010-08-13
• Puts under — 2008-07-31
• Knocks out — 2004-08-21
• Does some composing — 2001-06-29
• Settles — 1998-08-01
• Puts under — 1997-01-04
• Calms medically — 1994-09-12
• Stupefies — 1994-03-13
• Drugs, perhaps — 1994-02-26