Historical clue formulations

• Word after good or by — 2023-08-19
• "By ___!" — 2015-12-19
• "Well, jeepers!" — 2015-05-19
• "Would you look at that!" — 2014-08-30
• "Holy smokes!" — 1999-07-22
• "Gee whiz!" — 1995-08-05