Historical clue formulations

• European land where much of "Game of Thrones" was filmed — 2025-08-07
• Country that adopted the euro in 2023 — 2024-03-26
• Country with the longest border along the Adriatic Sea — 2023-05-23
• U.N. member whose capital comes last alphabetically — 2017-11-10
• Zagreb's country — 2017-07-16
• Neighbor of Slovenia — 2007-10-30
• Country founded by King Tomislav in A.D. 924 — 2005-12-11
• Split locale — 2005-05-27
• Ancient Illyricum, today — 2003-03-02
• Modern-day locale of ancient Dalmatia — 1999-10-09
• Tito's homeland — 1997-05-01