| Government | Before or after 1800 | Date established |
| First French Republic | |
| Qajar Dynasty Persia | |
| Dominion of Canada | |
| First French Empire | |
| Kingdom of Italy | |
| United Provinces of the Rio de la Plata | |
| Russian Empire | |
| Union of Sweden and Norway | |
| Batavian Republic | |
| Chakri Dynasty Thailand | |
| First French Republic | |
| United States (with federal constitution) | |
| First French Empire | |
| Empire of Haiti | |
| Chakri Dynasty Thailand | |
| First Mexican Empire | |
| Batavian Republic | |
| Kingdom of Italy | |
| Russian Empire | |
| Union of Sweden and Norway | |
| Grand Principality of Finland | |
| Kingdom of Hawai'i (united) | |
| Qajar Dynasty Persia | |
| Confederate States of America | |
| Dominion of Canada | |
| Kingdom of Greece | |
| Sikh Empire | |
| United Kingdom of Great Britain and Ireland | |
| Cape Colony (British control) | |
| United Provinces of the Rio de la Plata | |