Historical clue formulations

• "It's all gonna be OK" — 2023-03-10
• Words of consolation — 2018-03-16
• [ ] — 2013-11-21
• "It'll be O.K." lead-in — 2012-02-17
• "Everything is going to be okay ..." — 2001-05-04
• Words that might accompany a 45-Across — 1999-08-14
• Words of consolation — 1999-07-19
• Calming words — 1996-05-10