Historical clue formulations

• Household — 2016-11-05
• Group of people living together — 2015-02-25
• Household — 2014-03-21
• Housekeeping — 2013-03-17
• Household — 2003-08-28
• Housekeeping — 1998-01-04
• Household — 1997-03-11
• Housekeeping — 1996-09-15