Historical clue formulations

• Heaven — 2020-12-22
• Utopia — 2018-05-01
• Red wine drinker's paradise? — 2013-12-08
• Utopia — 2000-03-24
• Place of bliss — 1997-12-08
• James Hilton locale — 1997-06-14
• "Lost Horizon" paradise — 1994-07-05