Historical clue formulations

• "___ my wit's end!" — 2016-01-27
• "___ my wit's end" — 2012-11-06
• "This is where ___" — 2007-04-22
• "While ___ it ..." — 2005-01-08
• "While ___ it …" — 2004-12-31
• "While ___ it ..." — 2001-12-22
• "___ my wit's end!" — 2001-11-27
• "___ my wit's end" — 1998-04-07
• "___ the end of my rope!" — 1997-10-09