Historical clue formulations

• Berliner's "old" — 2022-02-20
• ___ Oper (famed German concert hall) — 2021-03-20
• German opposite of "junge" — 2020-11-06
• Old person, in Oldenburg — 2019-02-06
• ___ Oper (historic concert hall in Frankfurt, Germany) — 2018-03-24
• Old one, in Oldenburg — 2017-03-21
• Berlin's ___ Nationalgalerie — 2016-07-02
• Der ___ (Adenauer) — 2015-10-11
• ___ Sprachen (ancient languages: Ger.) — 2015-06-26
• Old one, in German — 2014-07-15
• Old one, in Austria — 2013-02-19
• Old one, in Oldenburg — 2012-11-17
• Old man: Ger. — 2010-12-22
• Old Hamburger? — 2010-04-17
• Adenauer nickname, with "Der" — 2008-11-19
• Der ___ (Konrad Adenauer) — 2008-09-18
• ___ Oder (German river) — 2008-06-21
• Old one, along the Oder — 2008-03-07
• Old man, in Mannheim — 2007-09-21
• Der ___ (Konrad Adenauer) — 2007-07-31
• Germany's Konrad Adenauer, Der ___ — 2005-12-19
• Old one: Ger. — 2005-04-17
• Old, to Oskar — 2004-09-08
• Der ___ Herr (the old man): Ger. — 2004-03-07
• Der ___ Fritz (Friedrich the Great) — 2004-01-04
• Der ___ (Konrad Adenauer) — 2001-06-05
• Der ___ (German "father") — 1999-11-06
• Der ___ (Adenauer) — 1999-07-29
• Der ___ (Adenauer) — 1999-03-07
• Adenauer nickname, with "Der" — 1999-02-03
• Der ___ (Adenauer) — 1998-06-09
• Old one: Ger. — 1998-03-19
• Konrad Adenauer, Der ___ — 1997-07-02
• Adenauer, a k a Der ___ — 1997-05-25
• Der ___ (Adenauer) — 1997-02-23
• Adenauer moniker Der ___ — 1997-01-09
• Der ___ (Adenauer) — 1996-09-30
• Der ___ (Adenauer) — 1996-09-01
• Der ___ (Adenauer monicker) — 1996-08-23
• Der _____ (Adenauer) — 1995-07-09
• Der _____ (Adenauer) — 1995-03-07
• Old-timer in Wiesbaden — 1995-01-15
• Der _____ (Adenauer) — 1994-09-01
• Der _____ (Adenauer moniker) — 1994-07-18
• Part of an Adenauer epithet — 1994-04-08
• Das _____ (the old): Ger. — 1994-02-05
• Der _____ (Adenauer) — 1994-02-01