Historical clue formulations

• ___ the crack of dawn — 2020-12-13
• Show ___ (attend, as a meeting) — 2008-04-14
• Show ___ (attend) — 2008-02-21
• "___ Oxford" (Ved Mehta memoir) — 2006-02-11
• ___ the crack of dawn — 2005-07-08
• ___ the crack of dawn — 2001-12-03
• ___ the crack of dawn — 1999-07-26