Historical clue formulations

• Came clean? — 2025-03-02
• Got clean, in a way — 2024-01-05
• Got clean — 2021-05-28
• Took a dip — 2011-08-17
• Washed — 2007-02-08
• Washed — 2005-03-29
• Enjoyed a soak — 1999-12-19