Historical clue formulations

• Kind of belt — 2023-10-18
• Missionary work? — 2022-12-15
• Book used at inaugurations — 2022-12-05
• Common hotel room item — 2022-02-23
• Best-selling book of all time — 2021-03-21
• Book that people take an oath on — 2019-12-10
• Aid for administering an oath of office — 2017-05-16
• See 33-Across — 2017-02-01
• Swearing-in staple — 2015-11-04
• Job holder? — 2015-07-04
• ___ Belt — 2015-02-21
• Daily reading for a pope — 2012-05-28
• Book that might contain birth records — 2011-10-19
• Oath taker's aid — 2007-05-09
• Perennial best seller, with "the" — 2005-12-27
• Holy book — 2002-03-04
• Authoritative text — 2000-11-02
• Kind of Belt — 1994-11-05