Historical clue formulations

• Largest zodiac constellation — 2026-09-13
• Late August baby, astrologically — 2024-05-27
• Labor Day baby, e.g. — 2020-09-06
• Many a September birth — 2017-07-26
• Spica's constellation — 2017-02-04
• Labor Day arrival, e.g. — 2014-08-02
• Intelligent, creative sort, supposedly — 2009-07-12
• Lyndon Johnson, by birth — 2007-01-28
• Sign of late summer — 2006-01-09
• Sign of summer — 2003-12-30
• Neighbor of Leo — 2003-05-28
• Sign of late summer — 2003-01-28
• Sign of summer's end — 1998-05-13
• Spica's constellation — 1997-04-06
• One who's practical and tidy, they say — 1996-12-11
• Spica's location — 1994-08-06