Historical clue formulations

• Spring event — 2026-06-19
• Break the ice? — 2026-05-15
• Freeze's opposite — 2026-05-11
• De-ice — 2026-03-26
• Be unchill? — 2025-11-14
• What spring may bring — 2025-05-20
• Cause of puddles in early spring, say — 2025-01-26
• Unfreeze — 2023-06-21
• Sign of spring — 2022-08-17
• Spring event — 2020-12-20
• Become more relaxed — 2020-09-17
• Undergo rapprochement — 2020-04-05
• Détente — 2019-07-18
• Take out of the freezer — 2019-02-11
• Spring awakening sign — 2018-08-16
• Icebreaker? — 2017-11-18
• Sign of spring — 2017-11-15
• Soften — 2017-03-10
• Deice — 2017-02-13
• Winter respite — 2016-12-01
• Melt — 2015-09-07
• Spring event — 2015-09-01
• With 68-Across, release philosopher John Stuart from cryonic suspension? — 2015-07-01
• Instruction on a frozen turkey — 2015-03-24
• Détente — 2013-11-22
• Relief for the snowbound — 2013-11-03
• Unfreeze — 2013-09-09
• Spring warming — 2013-06-18
• Midwinter event, often — 2013-04-24
• Unfreeze — 2012-12-24
• Spring phenomenon — 2012-10-28
• Springtime period — 2012-03-16
• Melting period — 2012-02-28
• De-ice — 2012-01-10
• Melt — 2011-09-05
• Get out of the cold? — 2011-01-06
• Warming trend — 2010-11-10
• Midwinter phenomenon, sometimes — 2009-12-23
• Détente — 2009-11-01
• Remove from the freezer — 2008-03-10
• Detente — 2008-01-11
• Microwave option — 2007-09-11
• Sign of spring — 2007-04-01
• Opening for peace talks — 2005-10-13
• Become friendlier — 2004-03-28
• Loosen — 2003-11-09
• Take out of the freezer — 2003-07-28
• Loosen up — 2003-07-03
• Unfreeze — 2003-02-17
• Microwave option — 2002-10-30