Historical clue formulations

• A chance of a lifetime, say — 2022-03-16
• Not part of a series — 2015-02-28
• Special newsstand offering — 2014-12-21
• Single-issue publication — 2012-07-29
• Having no sequel — 2007-10-14
• Nonrecurring publication — 2006-11-19
• It isn't repeated — 2006-01-21
• Nonrecurring — 2003-10-08
• Isolated appearance — 2003-05-17
• What a foul might result in — 1999-02-20
• Single-issue magazine — 1998-11-13