Historical clue formulations

• Become fixed — 2025-04-17
• Take hold — 2023-03-16
• Words with motion or stone — 2023-03-12
• Take effect — 2022-09-27
• Become fixed — 2021-01-21
• Take effect — 2020-11-11
• Arrive, as a cold front / Evenings, informally — 2019-04-09
• Take root — 2018-05-12
• Take effect — 2018-03-07
• Arrive, as a storm — 2017-12-20
• Took effect — 2017-02-28
• Take root — 2016-01-10
• Become established — 2015-10-06
• Not aligned on the margin — 2015-03-31
• With 59-Down, permanent ... or, literally, a feature of the answers to the seven starred clues — 2015-02-08
• Arrive, as darkness — 2012-11-27
• Become fixed — 2012-04-29
• Become established — 2008-12-15
• ___ motion (start) — 2008-12-01
• Arrive, as darkness — 2006-09-30
• Begin, as winter — 2004-11-07
• Became widespread — 2004-08-07
• Became rampant — 2004-08-05
• Place — 2002-12-15
• Not on the perimeter — 2002-05-27
• Become established — 2002-05-08
• Take root — 2002-04-07
• Arrive, as darkness — 2001-08-05
• Not on the margin — 2000-12-01
• Like some stoves — 1998-08-13
• Take effect — 1998-05-26
• Take hold — 1997-09-04
• Like some stoves — 1997-05-11
• Kind of sleeve — 1996-11-17
• Become established — 1996-01-24
• Begin, as winds — 1993-12-02