Historical clue formulations

• Potter's pedal — 2013-02-03
• Crafter's pedal — 2012-02-19
• Potter's pedal — 2010-02-17
• Potter's pedal — 2005-06-29
• It may be worked by a tailor — 2003-09-27
• It requires footwork — 2000-05-13
• Part of a spinning wheel — 1999-07-15