Historical clue formulations

• Like some boarding school attire — 2025-12-10
• "Gossip Girl" fashion descriptor — 2025-04-26
• Like an ascot, perhaps — 2017-04-22
• Like some boarding schools — 2016-12-06
• Wearing a polo shirt and boat shoes, say — 2015-04-03
• Lacoste-wearing, maybe — 2006-08-18
• Ivy League-ish — 2005-09-05
• Like Top-Siders and khakis — 2001-02-04