Historical clue formulations

• Made turbulent, as water — 2022-04-11
• Stirred up — 2021-03-28
• Stirred up — 2020-01-24
• Bubbled, as a cauldron — 2019-10-24
• Muddied — 2017-08-12
• Churned — 2016-04-17
• Disturbed — 2014-06-19
• Muddied the waters — 2005-05-17
• Stirred up — 2004-11-25
• Agitated — 2000-12-03
• Stirred up — 1998-12-13