Historical clue formulations

• "Is this possible?!?" — 2025-12-05
• Disbeliever's question — 2018-09-01
• "Is that even possible?" — 2017-08-20
• Incredulous response — 2014-06-19
• "How is this possible?" — 2011-07-03
• "Do I dare believe that?" — 2004-09-04