Historical clue formulations

• Missing people? — 2025-04-13
• ___ Planet (travel guidebook series) — 2023-12-29
• Like those at the top, it's said — 2023-11-05
• In need of a friend, say — 2023-08-15
• Seeking company, maybe — 2022-12-13
• Friendless — 2020-01-09
• Out of date? — 2018-05-06
• Feeling friendless — 2012-09-10
• Unfrequented — 2011-11-04
• In need of company — 2009-12-08
• Unfriended — 2006-09-05
• Unfrequented — 2006-04-29
• Unfrequented — 2003-03-08
• Deserted — 2000-09-23
• Godforsaken — 1999-10-05
• Without company — 1996-09-18
• Friendless — 1996-02-11