| Date | Former Name | Answer | % Correct |
|---|---|---|---|
| 1937 | Irish Free State | Ireland | 100%
|
| 2019 | Former Yugoslav Republic of Macedonia | North Macedonia | 100%
|
| 2017 | Czech Republic* | Czechia | 98%
|
| 1922 | United Kingdom of Great Britain and Ireland | United Kingdom of Great Britain and Northern Ireland | 98%
|
| 1870 | North German Confederation | Germany | 93%
|
| 1929 | Kingdom of Serbs, Croats, and Slovenes | Yugoslavia | 93%
|
| 1830 | United Kingdom of the Netherlands | Belgium | 77%
|
| 1859 | United Principalities of Moldavia and Wallachia | Romania | 77%
|
| 1940, 1991 | Bessarabia | Moldova | 51%
|