Historical clue formulations

• Capital of Albania — 2020-01-19
• Capital on the Balkan Peninsula — 2019-07-20
• Capital of Albania — 2018-11-25
• European capital that's majority-Muslim — 2013-03-07
• World capital that's home to Zog I Boulevard — 2012-12-30
• Capital city formerly behind the Iron Curtain — 2012-07-08
• Capital whose central plaza is Skanderbeg Square — 2011-03-12
• Capital of Albania — 2010-09-05
• Capital near the Adriatic — 2000-05-20
• Capital city spelled with an umlaut — 1998-06-14
• European capital — 1996-08-09
• Balkan capital — 1996-02-25
• European capital — 1994-03-17