Historical clue formulations

• Question of incredulity — 2023-07-28
• Response to a surprising claim — 2018-03-25
• Question after a surprising claim — 2014-03-29
• "Seriously?" — 2011-03-11
• "Oh, really?" — 2006-03-12
• "That Thing ___!" (Tom Hanks film) — 2004-03-28