Historical clue formulations

• "Well, whaddya know!" — 2024-08-14
• Sight line? — 2022-03-06
• "Hey, check that out!" — 2020-11-05
• Excited pointer's comment — 2006-01-20
• "Hey, check that out!" — 1999-04-01
• "You have to see this!" — 1999-01-31