Historical clue formulations

• Come back — 2026-03-14
• Keep coming up — 2026-01-02
• Happen again — 2025-06-29
• Happen over and over — 2025-02-23
• Come back — 2024-10-18
• Happen periodically — 2022-12-23
• Happen again — 2019-09-01
• Happen again — 2018-12-03
• Come around again — 2016-08-30
• Come back — 2016-02-20
• Cause déjà vu, perhaps — 2015-05-10
• What some dreams and themes do — 2014-11-23
• Come back — 2014-09-28
• Appear over? — 2013-09-12
• Happen again — 2013-02-04
• Go down again, so to speak — 2011-09-16
• Come to mind again — 2011-07-21
• Happen again — 2011-07-12
• Happen again — 2011-05-29
• Keep happening — 2011-04-25
• Come back — 2010-11-03
• Make a comeback — 2010-03-12
• Come up again and again — 2009-05-05
• Come and go — 2008-07-11
• Come back — 2004-05-24
• Come again — 2002-09-29
• Come back — 2002-05-12
• Come and go — 2000-11-24
• Happen again — 1999-07-12
• Come again — 1999-04-14
• Happen again — 1998-05-14
• Be cyclical — 1997-09-21
• Persist — 1996-11-14
• Crop up again — 1995-05-18