Historical clue formulations

• "___ Calm and Carry On" — 2026-05-18
• Decide not to toss — 2025-05-10
• Not discard — 2025-01-20
• Label for a box during a household purge — 2024-07-31
• Hang on to — 2024-03-18
• Hang on to — 2023-12-06
• Stay fresh — 2023-03-22
• Castle fortress — 2022-11-11
• Not spoil — 2022-05-23
• Hold on to — 2022-05-08
• Remain fresh — 2022-03-09
• Stay good — 2021-11-26
• Retain — 2021-07-20
• Maintain — 2020-03-01
• Not go bad — 2019-12-31
• Medieval stronghold — 2019-11-03
• Not go bad — 2019-09-29
• Remain fresh — 2017-04-30
• Hold on to — 2017-03-13
• Retain — 2017-01-19
• Stay fresh — 2016-10-17
• Castle part — 2016-07-17
• Not go bad — 2016-05-09
• Stay good — 2016-04-05
• Stay fresh — 2013-01-13
• Not spoil — 2011-03-23
• Not spoil — 2010-07-18
• Hang on to ... or a word that can precede either half of the answer to each starred clue — 2010-01-26
• Not give up — 2009-12-16
• Not go bad — 2009-02-12
• Castle stronghold — 2008-08-14
• Not rot — 2008-08-04
• Opposite of throw away — 2008-02-26
• Not toss — 2007-05-10
• Retain — 2006-12-18
• Not rot — 2006-10-07
• Stay fresh — 2006-07-21
• Not rot — 2005-12-16
• Maintain — 2005-10-30
• Stay fresh — 2004-09-08
• Stay fresh — 2003-08-28
• Castle part — 2002-05-19
• Refuse to release — 2001-10-02
• Retain — 1999-06-14
• Withhold — 1999-04-12
• Hoard — 1999-03-10
• Hang onto — 1997-10-07
• Subsistence — 1997-08-02
• Stay fresh — 1997-05-16
• Donjon — 1996-05-28