Historical clue formulations

• Catastrophe — 2025-02-18
• Emergency — 2018-01-04
• Cause for using a hot line — 2008-08-28
• Big pickle? — 2007-12-23
• More than hot water — 2002-10-19
• Head — 2002-09-13
• Heartbeat quickener — 2000-09-03
• Kind of center — 2000-02-20
• Turning point — 1999-04-30
• N.A.A.C.P. magazine, with "The" — 1996-09-19
• Emotional period — 1994-10-11
• 1901 Churchill novel, with "The" — 1994-07-05