Historical clue formulations

• Skeptic's remark — 2025-11-17
• Perhaps not at all — 2017-03-23
• Should that happen — 2016-11-20
• Assuming it's even possible — 2015-10-04
• Assuming, hypothetically — 2008-01-16
• "Should that come to pass" — 2007-07-11
• Assuming, hypothetically — 2005-09-08
• Assuming it'll happen at all — 2002-01-12
• In song, words before "a wiz there was" — 1998-01-30