Historical clue formulations

• "Last one ___ a rotten egg!" — 2017-09-20
• "Last one ___ a rotten egg!" — 2012-02-29
• "Last one ___ ..." — 2008-03-28
• "Last one ___ …" — 2006-01-06
• "Last one ___ a rotten egg!" — 2003-02-11
• "Last one ___ a rotten egg!" — 1999-01-18