Historical clue formulations

• Mathematician John who won a Nobel in economic science in 1994 — 2026-06-28
• Niecy ___ of "Clean House" — 2025-09-03
• Poet who wrote "Behold the duck / It does not cluck" — 2024-06-30
• Poet who wrote "The Cow" and "The Panther" — 2023-08-20
• Poet who wrote "The cow is of the bovine ilk; / One end is moo, the other, milk" — 2022-11-23
• Mathematician John Forbes ___ Jr. — 2021-10-24
• Poet Ogden — 2021-09-08
• See 16-Across — 2021-06-08
• Actress Niecy on the Hollywood Walk of Fame — 2021-04-09
• Ogden who wrote "Farewell, farewell, you old rhinoceros, / I'll stare at something less prepoceros" — 2020-07-20
• Crosby, Stills, ___ & Young — 2020-02-24
• Who wrote "Parsley / Is gharsley" — 2019-11-15
• "A bit of talcum / Is always walcum" writer — 2019-09-22
• First car to offer seatbelts (1950) — 2019-02-14
• Poet who wrote "In the Vanities / No one wears panities" — 2018-04-19
• Automaker that introduced the Rambler — 2017-04-09
• "A bit of talcum / Is always walcum" writer — 2017-02-12
• Mathematician John portrayed in "A Beautiful Mind" — 2016-04-14
• Longtime Crosby partner — 2015-01-29
• Bandmate of Crosby, Stills and Young — 2014-09-02
• Crosby, Stills, ___ & Young — 2014-04-28
• Poet who wrote "So Thomas Edison / Never drank his medicine" — 2014-04-27
• Poet Ogden — 2014-02-10
• Humorist who wrote "Happiness is having a scratch for every itch" — 2013-07-04
• Mathematician John who was the subject of "A Beautiful Mind" — 2013-06-04
• Poet Ogden — 2012-05-28
• Humorist who wrote "Progress might have been all right once, but it has gone on too long" — 2011-12-30
• Part of rock's CSNY — 2011-09-21
• Two-time N.B.A. M.V.P. Steve — 2011-03-20
• Ambassador of old autodom — 2010-12-03
• Ogden who wrote "Candy / Is dandy / But liquor / Is quicker" — 2010-08-16
• Ambassador of old autodom — 2010-02-11
• Crowe's role in "A Beautiful Mind" — 2009-11-04
• He wrote "If called by a panther, / Don't anther" — 2009-04-01
• Auto superseded by the Rambler — 2008-06-01
• Graham of rock — 2008-05-08
• Poet Ogden — 2007-03-19
• Ambassador or Statesman of old autodom — 2007-01-07
• Ogden who wrote "The Bronx? / No, thonx!" — 2006-03-27
• He wrote a hit Broadway musical with Weill — 2006-01-13
• Bronx/thonx rhymer — 2005-09-14
• Crowe's "A Beautiful Mind" role — 2005-03-01
• "The Turtle" poet — 2005-02-03
• Ambassador or Statesman, once — 2005-01-08
• Car until 1957 — 2004-12-01
• Famous rhymer of Bronx with "thonx" — 2004-09-15
• Bygone auto — 2004-08-17
• His poem "Fleas" reads, in its entirety, "Adam / Had 'em" — 2004-05-27
• Car last made in 1957 — 2004-05-02
• Ambassador of old autodom — 2004-03-07