Historical clue formulations

• Fourth-year student — 2022-08-08
• Thesis writer — 2022-07-10
• Kind of thesis — 2022-03-20
• Soon-to-be graduate, usually — 2020-01-14
• High-class person? — 2019-11-10
• 12th grader — 2019-09-23
• Lead-in to -itis — 2016-07-10
• Prom attendee, typically — 2014-07-01
• Snowbird, typically — 2012-11-18
• Student involved in a prank, maybe — 2012-01-29
• 12th grader — 2010-08-30
• ___ moment — 2009-02-04
• Like half of U.S. senators — 2008-08-27
• 12th-grader — 2006-09-18
• Like I, to II — 2005-05-22
• Potential retiree — 2004-02-18
• With 11-Across, tux-renting occasion — 2003-07-19
• Kind of moment — 2003-02-09
• ___ moment — 2001-06-24
• Higher-ranking — 2001-02-03
• Next year's alumnus — 1998-09-16
• Longer-lived — 1996-07-04
• Name tag — 1994-10-09
• Grad-to-be — 1994-04-11