Historical clue formulations

• Office memo starter — 2026-05-03
• Memo starter — 2026-04-26
• Concerning — 2026-02-25
• Memo heading — 2025-12-16
• Concerning — 2025-12-07
• Concerning — 2025-09-19
• Regarding — 2025-08-01
• Start of a memo — 2025-07-14
• Memo heading — 2024-11-17
• Regarding — 2024-10-17
• Memo heading — 2024-09-08
• Memo line — 2024-08-07
• About, on a memo — 2024-03-31
• Memo heading — 2024-03-13
• About, on a memo — 2023-12-20
• Memo starter — 2023-10-22
• As to — 2023-09-06
• Legal memo header — 2023-08-13
• Memo starter — 2023-03-11
• Memo starter — 2023-02-13
• On, on a memo — 2023-02-10
• Memo heading — 2023-02-08
• Memo starter — 2022-11-03
• About, on a 10-Down — 2022-10-16
• Memo starter — 2022-09-04
• Legal contract phrase — 2022-08-28
• Memo subject header — 2022-03-16
• Concerning — 2021-10-15
• About — 2021-09-18
• Phrase starting a legal memo — 2021-08-16
• Concerning — 2021-07-20
• About, on a memo — 2021-05-11
• About, on a memo — 2020-05-12
• Memo heading — 2020-05-03
• Memo opener — 2019-11-18
• On the topic of — 2019-09-28
• Concerning — 2019-07-05
• Latin phrase on memos — 2019-03-06
• About — 2019-01-11
• Memo starter — 2018-11-25
• About, on memos — 2018-10-21
• About — 2018-10-11
• Concerning, to attorneys — 2018-08-08
• Memo header — 2018-07-25
• About — 2018-07-12
• About, at the start of a memo — 2018-03-26
• About — 2017-10-05
• Concerning, to a lawyer — 2017-03-21
• Subject preceder — 2016-12-23
• About, on a memo — 2016-08-23