Historical clue formulations

• Like Liederkranz cheese — 2016-01-21
• Ripe — 2014-10-15
• Reeking — 2012-06-25
• Like gym socks — 2012-06-11
• Malodorous — 2008-02-03
• Odoriferous — 2002-05-13
• Rotten — 1997-04-04
• Offensive, in a way — 1996-09-22
• Reeking — 1996-04-25