Historical clue formulations

• Greatest potential accomplishment, metaphorically — 2025-08-31
• Pinnacle achievement, metaphorically — 2024-04-14
• Conquest of 1953 — 2015-12-27
• Subject of the 1997 best seller "Into Thin Air" — 2014-12-09
• Mountain previously named Peak XV — 2009-11-25
• Major hurdle, metaphorically — 2006-05-20
• High place — 2004-03-05
• Apex — 2003-04-18
• High point — 2002-11-17
• Challenge for Hillary — 2001-07-14
• High point — 1999-11-26
• High point — 1999-07-11
• Conquest of 5/29/53 — 1998-12-27
• Ultimate challenge — 1998-11-29
• Goddess Mother of the World — 1998-10-23
• Mountain known locally as Chomolungma — 1998-10-10
• News locale of 5/28/53 — 1997-04-27
• Chomolungma's more familiar name — 1997-03-02
• View from Darjeeling — 1996-02-09
• Conquest of 5/29/53 — 1994-11-25
• Hillary's conquest — 1994-10-13
• It was first conquered in 1953 — 1994-07-03
• Hillary's conquest — 1994-05-18