Historical clue formulations

• Typical fan of Dick Clark's "American Bandstand" — 2019-05-26
• Typical user of a transistor radio — 2016-11-02
• Many a Taylor Swift fan — 2014-10-01
• "American Bandstand" viewer — 2011-04-02
• Bubblegummer — 2010-05-14
• Target MTV viewer — 2007-04-12
• Youth — 2005-06-18
• Backstreet Boys fan, maybe — 2000-07-30
• Junior high student — 1999-04-05
• Acne sufferer, most likely — 1999-02-21
• High schooler — 1999-02-03
• High schooler — 1998-12-16
• Bobby soxer — 1998-04-11
• High school student, informally — 1994-11-26