Historical clue formulations

• Went down the drain, say — 2023-11-04
• Went round and round, in a way — 2022-09-17
• Swirled — 2018-01-22
• Went for a whirl — 2017-11-05
• Swirled — 2015-03-22
• Went around in circles, say — 2010-11-14
• Swirled — 2003-09-28
• Went around in circles? — 2001-03-09
• Swirled — 2000-07-08
• Swirled — 1998-10-25