Historical clue formulations

• Rehab treatment — 2025-08-18
• Setting for many New Yorker cartoons — 2016-09-25
• Rehabilitative effort — 2016-01-30
• Couples may be in it — 2013-01-25
• A couple may be in it — 2006-11-17
• Headwork? — 2006-02-14
• Doctor's order — 2004-06-19
• It could be a group effort — 1998-08-27