Historical clue formulations

• Water cooler? — 2025-10-04
• It goes "clink" in a drink — 2020-07-20
• Drink cooler — 2014-09-01
• Drink cooler — 2014-06-29
• Rock, so to speak — 2014-04-09
• Rapper in the film "21 Jump Street" — 2013-03-25
• Producer of a chilling effect — 2011-11-19
• Cooler — 2004-01-16