Historical clue formulations

• School that's a rival of 30-Across, informally — 2025-08-07
• Philly school — 2024-01-31
• Sch. founded by Ben Franklin — 2023-04-11
• Philly ivy — 2021-05-04
• Institution founded by Benjamin Franklin, in brief — 2020-03-12
• Ivy seen along the Schuylkill River — 2020-02-27
• Philly Ivy — 2020-01-22
• Wharton's school, familiarly — 2018-11-06
• Ivy League sch. in Philly — 2016-11-21
• Wharton's home, briefly — 2015-12-12
• Phila. school — 2014-04-29
• Ivy League sch. — 2012-08-15
• An Ivy, briefly — 2008-11-12
• An Ivy, briefly — 2007-04-08
• Ivy League school in Phila. — 2006-12-04
• One of the Ivies — 2005-06-05
• Ivy League school, familiarly — 2003-02-13