Historical clue formulations

• Elated — 2020-10-09
• Like a happy mountaineer? — 2019-09-17
• Ecstatic — 2008-02-02
• See note — 2006-09-14
• Ecstatic — 2006-02-27
• Really happy, as a mountaineer? — 2000-08-28
• Feeling really good — 1997-05-26