Historical clue formulations

• Gray matter? — 2023-03-05
• Gray area? — 2018-05-04
• Body of science? — 2015-10-04
• An arm and a leg and then some — 2012-09-29
• All the things you are — 2011-10-21
• Makeup lessons? — 2010-04-24
• All the things you are — 2006-10-27
• Art student's subject — 1996-11-18
• Makeup class? — 1996-06-14