Historical clue formulations

• Inoffensive — 2023-03-12
• Blandly agreeable — 2019-06-28
• Pain reliever — 2014-10-15
• Analgesic — 2011-09-29
• Soother — 2006-08-17
• Painkiller — 1999-06-23
• Pain-relieving — 1998-09-04
• Pain reliever — 1997-01-26
• Pain allayer — 1995-05-17
• Pain reliever — 1994-07-27