Historical clue formulations

• Largest college fraternity in the U.S., familiarly — 2025-08-17
• Skull-and-crossbones fraternity, for short — 2022-11-28
• First national fraternity to officially welcome transgender members (2014), informally — 2022-02-19
• First college frat to charter a chapter in all 50 states — 2012-11-04
• Popular fraternity, familiarly — 2009-05-02
• Member of a popular college frat — 2007-10-27
• Largest college fraternity in the U.S., in brief — 2005-01-09