Historical clue formulations

• Tough H.S. classes — 2026-01-11
• Some high-level H.S. classes — 2025-12-24
• Some courses for honor students, for short — 2025-08-09
• Human Geography and Calculus BC, for short — 2025-04-05
• H.S. exams taken for college credit — 2025-03-02
• Coll.-level classes — 2020-05-11
• College-level H.S. courses — 2016-08-28
• H.S. courses for coll. credit — 2011-12-07
• Tests for college credit, briefly — 2010-05-30