Historical clue formulations

• Parent's curt response to a kid's "But why?" — 2026-02-03
• Unconvincing response to "Why?" — 2016-11-25
• As — 2013-08-02
• A1 — 2012-09-13
• "Abbey Road" song — 1998-01-01
• Perry Como classic — 1994-11-22