Historical clue formulations

• Johnny B. of song — 2024-08-27
• Former Philadelphia mayor Wilson — 2022-05-14
• Chuck Berry's "Johnny B. ___" — 2019-12-30
• "Johnny B. ___" (Chuck Berry hit) — 2017-09-28
• Chuck Berry's "Johnny B. ___" — 2015-04-10
• "Johnny B. ___" — 2014-09-11
• Philadelphia's first black mayor, 1984-92 — 2005-01-07
• Former Philadelphia Mayor Wilson — 1999-05-20
• Former Philly mayor Wilson ___ — 1997-01-15