Historical clue formulations

• Check in — 2022-08-26
• Paper handed in for school — 2020-10-29
• Arrive for duty — 2020-02-09
• Bit of news — 2018-10-20
• Bit of homework — 2011-04-03
• Bang or boom — 2010-10-01
• School assignment — 2007-03-07
• School assignment — 2000-12-13
• Gun sound — 1996-11-10