Historical clue formulations

• It can't be helped — 2023-06-24
• Knee-jerk response — 2022-04-03
• Involuntary response — 2020-03-03
• Flinching, typically — 2017-10-29
• Involuntary action — 2016-07-05
• Knee jerk, e.g. — 2016-03-25
• It's automatic — 1996-10-13
• Kind of camera — 1994-06-26