Historical clue formulations

• Supplement — 2023-09-13
• Pad — 2011-01-01
• Extend — 2004-12-10
• Extend, as a house — 2004-04-26
• Supplement — 2003-09-28
• Expand — 2003-02-06
• Extend — 2002-08-24
• Expand, as a house — 2002-03-18