Historical clue formulations

• Nothing: Lat. — 2024-01-11
• Nothing, to Nero — 2020-08-11
• Nero's zero — 2020-04-18
• Nothing, in Latin — 2017-03-19
• Nothing, in Latin — 2015-10-14
• Nothing — 2015-07-26
• Zero, to Nero — 2015-07-01
• Nothing — 2013-07-24
• Nothing — 2008-12-07
• Nothing, to Nero — 2008-02-24
• Zero, to Nero — 2007-03-08
• Zero for Nero — 2005-03-27
• It meant nothing to Nero — 2001-06-12
• It meant nothing to Caesar — 1997-07-27
• ___ dicit (legal refusal) — 1997-04-23
• This meant nothing to Nero — 1997-04-22