Historical clue formulations

• Move up — 2023-12-17
• Rise, as temperatures — 2023-11-21
• Ascend — 2021-09-15
• Rise — 2021-08-22
• Do some mountaineering — 2019-01-29
• Scale — 2016-06-05
• Mountaineer's undertaking — 2014-10-07
• Go up — 2013-07-29
• Do a Sherpa's work — 2009-06-17
• Scale — 2009-02-12
• Attain new heights — 2008-11-27
• Gain altitude — 2008-06-04
• Get to the top of — 2004-03-01
• Ascend — 2000-09-25
• Scale — 1999-09-02
• What clematis plants do — 1998-06-16
• Advance oneself — 1998-06-04
• Shinny — 1998-05-27
• Scale — 1995-08-16
• Mountaineer — 1994-01-18