Historical clue formulations

• Opera great Enrico — 2025-12-15
• Performer in the first U.S. public radio broadcast, 1910 — 2019-09-21
• Tenor from Naples — 2014-07-20
• David of "CSI: Miami" — 2012-04-11
• Player of TV's Caine — 2012-02-16
• 1951 title role for Mario Lanza — 2011-03-19
• Legendary opera star — 2009-09-02
• Famed tenor — 2005-04-21
• He debuted at the Met in 1903 — 2002-10-23
• Old-time Met tenor — 1998-11-04
• 1951 Lanza role — 1996-04-14
• "Ridi, Pagliaccio" singer — 1994-11-14
• Onetime La Scala tenor — 1994-04-26