Historical clue formulations

• Where firings take place — 2015-11-26
• Ceramists' fixtures — 2013-11-13
• Ceramists' baking chambers — 2007-11-06
• Firing places — 2004-07-23
• Hops driers — 2002-01-02
• Pottery ovens — 2001-09-10
• Ceramists' needs — 1998-10-20
• Hot spots — 1994-03-04