Historical clue formulations

• "So ___" — 2019-01-26
• "So ___" — 2016-04-10
• "___ ever so humble ..." — 2012-09-10
• "___ ever so humble ..." — 2000-12-04
• "So ___" — 1999-09-23
• "___ ever so humble..." — 1997-05-09