Historical clue formulations

• Simple ballroom dance — 2023-05-15
• Simple dance — 2022-10-15
• Like the simplest instructions — 2018-10-28
• Simple in the extreme — 2015-08-08
• Simple ragtime dance — 2015-01-28
• Ragtime dance — 2009-02-15
• Ragtime dance — 2007-01-27
• Lively ballroom dance — 2003-12-27
• Very simple, as a process — 2003-04-18
• Ballroom dance — 2002-08-24
• Round dance — 1999-09-19
• Ballroom dance — 1998-11-22
• Ragtime dance — 1998-11-01