Historical clue formulations

• Reunited city — 2025-04-23
• Most populous city in the European Union — 2024-12-22
• Home to Museum Island — 2022-03-26
• "God Bless America" composer — 2016-10-16
• 1936 Summer Olympics locale — 2015-11-06
• Once-divided city — 2011-10-19
• It's no longer divided — 2008-03-21
• Once-divided place — 2004-07-14
• See 35-Down — 1999-03-25
• "I Am a Camera" setting — 1999-03-12
• "Cabaret" setting — 1996-02-24