Historical clue formulations

• Unfortunate events, old-style — 2020-12-27
• Comes to pass, old-style — 2014-05-25
• Unlucky accidents, old-style — 2013-11-15
• Occurrences — 2008-09-26
• Accidents — 2008-02-10
• Accidents — 2000-04-15
• Chance occurrences — 1997-09-13
• Comes to pass — 1997-08-15
• Occurs, poetically — 1995-01-04