Historical clue formulations

• Basic school subj. — 2026-06-07
• Pulitzer Prize category: Abbr. — 2015-06-09
• Arts and Sciences dept. — 2012-06-06
• H.S. subject — 2008-03-30
• H.S. subject — 2007-11-10
• Pulitzer Prize subj. — 2007-01-07
• H.S. subject — 2006-09-19
• 6-Down's subj. — 2006-02-01
• Pulitzer Prize category: Abbr. — 2005-03-11
• High sch. subject — 2000-09-23
• School subj. — 1998-04-26
• School subj. — 1997-03-20
• "Hey you!" sound — 1994-08-03