Historical clue formulations

• Flipped (through) — 2018-01-10
• Flipped (through) — 2017-11-19
• Paged — 2007-07-06
• Paged — 2005-04-15
• Flipped (through) — 2003-01-21
• Flipped (through) — 2002-03-31
• Paged — 1997-11-19
• Paged — 1996-05-29