Historical clue formulations

• Tapless tap-dancing — 2011-11-09
• Form of tap dance — 2010-08-30
• Tap type — 2007-08-11
• Quiet tap dancing — 2007-05-08
• Dancing style — 2005-12-11
• Tap dancing without taps — 2005-08-01
• Tap-dancing without taps — 2003-06-25
• Some dancing — 1997-12-04
• Tap alternative — 1994-04-10