Historical clue formulations

• Leafs (through) — 2026-09-21
• Calls to task? — 2026-02-15
• They're contained within books — 2025-12-29
• Obsolescent book — 2024-07-28
• Leafs (through) — 2024-01-09
• They're connected to the spine — 2024-01-04
• Leaves at the library? — 2023-03-14
• — — 2022-06-19
• Flips (through) — 2021-09-30
• Leaves at the library? — 2019-10-30
• House aides — 2017-07-28
• Website parts — 2016-05-17
• "War and Peace" famously has more than 1,200 — 2016-03-07
• Senate gofers — 2010-11-01
• Summons — 2006-03-05
• House gofers — 2006-01-29
• 17- and 65-Across, and 10- and 25-Down — 2003-11-25
• Buzzes, say — 2002-03-05
• Book collection — 2002-02-16
• Beeps — 2002-02-09
• Buzzes — 1999-09-25
• Legislative aides — 1999-03-15
• Capitol Hill gofers — 1997-08-18
• Beeper calls — 1997-01-01
• Leafs — 1994-07-14