Historical clue formulations

• Sign up for — 2026-05-12
• Knit — 2025-10-05
• Connect — 2024-10-30
• Sign up for — 2022-09-14
• Link — 2022-04-26
• Button at the start of a Zoom call — 2021-08-16
• Enlist — 2021-07-12
• Connect — 2020-11-02
• Unite — 2019-12-16
• Enroll in — 2019-07-10
• Bridge — 2016-04-24
• Sign up — 2015-09-03
• Couple — 2012-08-03
• Couple — 2012-05-24
• Make one — 2007-04-20
• Bridge — 2005-03-30
• Make one — 2004-01-16
• Solder, say — 2001-05-30
• Enlist in — 2000-11-07
• Enroll in — 1996-09-11
• Amalgamate — 1995-05-22