Historical clue formulations

• Artist Max — 2026-09-21
• Young's partner in accounting — 2026-05-22
• Dadaist Max — 2025-08-18
• Physicist Mach after whom "Mach numbers" are named — 2025-06-13
• Senator Joni of Iowa — 2024-04-14
• Young partner — 2024-03-30
• Young's partner in accounting — 2023-08-28
• Senator Joni of Iowa — 2023-02-09
• Surrealist Max — 2023-02-07
• ___ Stavro Blofeld, enemy of 007 — 2023-02-05
• Eponymous physicist Mach — 2022-05-29
• Dada pioneer Max — 2022-05-18
• John Steinbeck's middle name — 2022-04-30
• Iowa senator Joni — 2022-01-31
• Young partner? — 2021-10-24
• ___ & Young (accounting firm) — 2021-05-10
• German philosopher Bloch — 2020-11-20
• Physicist Mach of Mach number fame — 2020-06-23
• Physicist Mach who lent his name to a measure of speed — 2020-05-21
• Big name in accounting — 2019-09-05
• Surrealist Max — 2019-07-18
• Max at the MoMA — 2018-12-23
• Young's partner in accounting — 2018-11-06
• Physicist Mach — 2018-10-07
• Iowa senator elected in 2014 — 2018-04-22
• Bond villain ___ Stavro Blofeld — 2018-04-07
• Dadaist Max — 2017-03-07
• German artist Max — 2016-10-10
• Young partner? — 2016-06-14
• Lubitsch of old Hollywood — 2016-03-18
• Dada pioneer Max — 2015-05-21
• Surrealist Max — 2015-05-06
• Physicist Mach — 2015-03-03
• Dadaist Max — 2014-12-22
• Pioneer of Dadaism — 2014-10-03
• Arp contemporary — 2014-04-12
• With 61-Across, physicist who studied supersonics — 2013-08-07
• Young's partner in accounting — 2013-06-11
• Dadaist Max — 2013-05-28
• Bond villain ___ Stavro Blofeld — 2013-04-28
• Young's partner in accounting — 2013-02-25
• Young partner / (next line) It's spelled out in a Travis Tritt hit — 2012-05-17
• German Surrealist Max — 2012-04-02
• ___ & Young (accounting firm) — 2012-02-29
• "Pietà or Revolution by Night" artist — 2012-02-04
• ___ & Young, big name in accounting — 2012-01-03
• Young business partner? — 2011-12-25
• Young's partner in accounting — 2011-10-31
• John Steinbeck's middle name — 2011-01-09
• Collagist Max — 2010-03-24