Historical clue formulations

• Batman and Robin, e.g. — 2026-07-26
• Pop music's Wham! or Erasure — 2025-02-12
• Hip-hop's Madvillain or Mobb Deep — 2024-11-06
• Couple — 2024-05-08
• What's needed for a "Who's on First?" routine — 2024-03-13
• Butch Cassidy and the Sundance Kid, e.g. — 2024-02-22
• Calvin and Hobbes, for one — 2023-12-04
• Performing pair — 2023-09-05
• Rosencrantz and Guildenstern, e.g. — 2023-08-11
• Bert and Ernie, for one — 2023-02-13
• Couple of musicians — 2022-10-10
• Lead-in to decimal — 2022-09-10
• Small musical group — 2022-08-16
• Twosome — 2022-06-28
• What Salt-N-Pepa were not, despite their name — 2022-06-24
• Bugs and Daffy in "The Iceman Ducketh," e.g. — 2022-03-16
• Indie pop's Tegan and Sara, e.g. — 2021-09-15
• Tweedledum and Tweedledee, e.g. — 2021-07-24
• Daft Punk or the White Stripes — 2021-06-29
• Tom and Jerry, e.g. — 2021-03-19
• Twain — 2021-02-06
• Pair — 2020-11-26
• Batman and Robin are a "dynamic" one — 2020-11-02
• Twosome — 2020-10-20
• Two — 2020-08-21
• Smallest possible band — 2020-08-15
• Thelma and Louise, e.g. — 2020-08-14
• Simon & Garfunkel, e.g. — 2019-11-11
• Abbott and Costello, e.g. — 2019-05-10
• Peter and Gordon, e.g. — 2019-02-25
• Bonnie and Clyde, e.g. — 2018-09-02
• Rock's White Stripes, e.g. — 2018-05-29
• Batman and Robin are a "dynamic" one — 2018-05-21
• Couple — 2018-03-07
• Twosome — 2018-01-08
• Hall & Oates, for example — 2017-11-27
• The Eurythmics were one — 2017-10-25
• Simon & Garfunkel, e.g. — 2017-08-02
• Hip-hop's Kris Kross or OutKast — 2017-07-25
• Hall & Oates, for example — 2017-06-06
• Batman and Robin are a "dynamic" one — 2016-06-20
• Coffeehouse combo, often — 2016-06-01
• The Black Keys of rock, e.g. — 2015-08-13
• The White Stripes, e.g. — 2015-06-26
• Indigo Girls, e.g. — 2015-01-25
• Twosome — 2014-12-29
• Electronic music's Daft Punk, e.g. — 2014-11-16
• The Judds, e.g. — 2014-09-14
• Indigo Girls, e.g. — 2014-07-02
• Pet Shop Boys, e.g. — 2014-04-20