Historical clue formulations

• Promise — 2026-04-15
• Solemnly swear — 2023-11-21
• Wedding ___ — 2023-07-05
• "I do," for one — 2021-09-15
• Reason to raise one's hand — 2020-05-02
• Solemn statement — 2020-01-05
• "I shall return," e.g. — 2018-10-26
• Word — 2018-07-13
• "I do," at a wedding — 2018-06-11
• "I shall return," say — 2018-04-26
• "I shall return," e.g. — 2017-12-17
• "I do," e.g. — 2016-08-17
• One of two at a wedding — 2015-10-25
• Veiled statement? — 2015-06-27
• Asseverate — 2015-05-24
• Wedding part — 2012-01-01
• Bad thing to break — 2008-08-02
• Binding declaration — 2006-01-07
• Solemn pledge — 2005-06-07
• See 35-Down — 2004-07-26
• "I do," at the altar — 2003-04-21
• Promise — 2003-02-09
• Solemn promise — 2002-12-09
• It may be taken with a raised hand — 2002-05-15
• "I shall return," e.g. — 2001-01-04
• "I do," for one — 2000-11-28
• Promise — 1999-06-29
• "I'll never do it again," e.g. — 1998-07-07
• Commitment — 1998-01-11
• Word — 1997-07-19
• Words to remember — 1997-07-05
• "I do," e.g. — 1997-02-09
• Profession — 1995-05-07