Historical clue formulations

• Addis ___ — 2023-11-26
• Addis ___ — 2022-11-27
• Addis ___, Ethiopia — 2018-08-27
• Addis ___ — 2017-08-06
• Addis ___, Ethiopia — 2014-09-09
• Addis ___, Ethiopia — 2013-07-29
• Addis ___ — 2011-04-19
• Part of a capital's name meaning "flower" — 2009-04-18
• Addis ___ — 2006-06-06
• Half a world capital — 2005-12-10
• Quintain rhyme scheme — 2004-07-30
• Addis ___, Ethiopia — 2004-05-17
• Addis ___ — 2001-09-30
• Addis ___ — 2001-06-10
• Addis ___ — 2000-12-19
• Addis ___ — 1999-06-08
• Addis ___ — 1998-05-09
• Addis ___ — 1997-08-13
• Addis___ — 1996-02-19
• Addis _____ — 1995-07-30