663 selected
- Not filled in
- Germany - Federal Republic of Germany (1949-present)
- Germany - German Empire (1871-1918(1919))
- Germany - German States (till 1871)
- Germany - Nazi Germany (1933-1945)
- Germany - Weimar Republic (1919-1933(1938))
- Ghana - Republic (1957-present)
- Gibraltar - British Colony (1704-present)
- Gilbert- en Ellice eilanden - Britse kolonie (1916-1978)
- Gough Island - British overseas territory (1938-present)
- Greece - First Hellenistic Republic (1828-1833)
- Greece - First Kingdom (1832-1923)
- Greece - Greece under Rome (146 BC-395 AD)
- Greece - Second Hellenistic Republic (1924-1935)
- Greece - Second Kingdom (1935-1973)
- Greece - Second Republic (1973-present)
- Greenland - Danish Colony (1921-1953)
- Grenada - Commonwealth of Nations (1967-1974)
- Grenada - Parliamentary Monarchy within the Commonwealth (1974-present)
- Guadeloupe - French Colony (1816-1946)
- Guatemala - Republic (1839-present)
- Guatemala - Spanish colony (1550-1821)
- Guernsey - British Crown Dependency (1204-present)
- Guinea - Republic (1958-present)
- Guinea-Bissau - Portuguese Guinea (1446-1974)
- Guinee-Bissau - Republiek (1974-heden)
- Guyana - Republic (1967-present)
- Habsburg Netherlands - provincial (1482-1585/1795)
- Haiti - Empire (1849-1863)
- Haiti - Republic (1825-1849)
- Haiti - Republic (1863-present)
- Hawaii - Koninkrijk (1810-1892)
- Heilige Roomse Rijk - Conglomeraat (926-1806)
- Hejaz and Nejd - Kingdom (1926-1932)
- Hidjaz - Kingdom (1916-1925)
- Hindu-Shahi of Kabul and Gandhara (870-1026 n.Chr)
- Honduras - Republic (1840-present)
- Hong Kong - British Colony (1842-1997)
- Hong Kong - Special Administrative Region (1997-present)
- Hungary - First Republic (1946-1949)
- Hungary - Kingdom (1000-1946)
- Hungary - People's Republic (1949-1989)
- Hungary - Second Republic (1989-present)
- Iceland - Denish (1380-1944)
- Iceland - Republic (1944-present)
- India - Princely States
- India - Republic (1947-present)
- India-British - British colony (1858-1947)
- India-Brits - East-India (31-12-1600-1-6-1874)
- Indies-Portuguese - Portuguese Government (1510-1961)
- Indonesia - pre colonization period
- Indonesia - Republic (1950-present)
- Ionian Islands - British Rule (1809-1863)
- Iran - Islamitic Republic (1979-present)
- Iran - Pavlavi era (1925-1979)
- Iran - Qajar dynasty (1794-1925)
- Iran - Safavid dynasty (1501-1736)
- Iraq - Kingdom (1921-1958)
- Iraq - Republic (1958-present)
- Ireland - Irish Free State (1922-1937)
- Ireland - Kingdom (1541-1801)
- Ireland - Republic (1937-present)
- Ireland - United Kingdom with Great Brittain (1801-1922)
- Islamic Empire - Abbasid Caliphate (750-1258, 129-637AH)
- Islamic Empire - Ayyubid caliphate (1171-1260, 550-639AH)
- Islamic Empire - Mamluk Caliphate (1250–1517, 629-896AH)
- Islamic Empire - Umayyad Caliphate (661-750, 40-129AH)
- Israel - Republic (1948-present)
- Italian Somaliland - Italians colony (1889-1936)
- Italy - Italian States (11th century-1815)
- Italy - Kingdom (1861-1946)
- Italy - Republic (1946-present)
- Italy - Risorgimento (1815-1870)
- Ivorycoast - Republic (1960-present)
- Jamaica - British colony (1660-1961)
- Jamaica - Independent State within Commonwealth (1962-present)
- Japan - Edo period (1603-1868)
- Japan - Heisei epoch (1989-2019)
- Japan - Komei epoch (1846-1867)
- Japan - Mutsuhito epoch (1867-1912)
- Japan - Reiwa epoch (2019-present)
- Japan - Showa epoch (1926-1989)
- Japan - Taisho epoch (1912-1926)
- Japanse bezetting van China (1932-1945)
- Jersey - British Crown Dependency (1204-present)
- Jordan - Kingdom (1949-present)
- Judea - Hasmonean (140-40 BC)
- Judea - Herodian dynasty (40 B.C.-93)
- Judea - Procuratoren (6-135)
- Kameroen - VN mandatory territory Frensh/British (1919-1960)
- Katanga - Province (1960-1963)
- Kazakhstan - Republic (1991-present)
- Kenya - Republic (1964-present)
- Kiribati - Republic (1979-present)
- Korea - Empire (1897-1905)
- Korea - Empire - Japanese Protectorate (1905-1910)
- Korea - Joseon Dynasty (1392-1897)
- Kroatië - Independent state (1941-1945)
- Kuwait - Sovereign Emirate (1961-present)
- Kyrgyzstan - Republic (1991-present)
- Laos - Autonomy in French Indochina (1949-1953)
- Laos - People's Democratic Republic (1975-present)
- Latvia - First Republic (1918-1939)
- Latvia - Republic (1991-present)
- Lebanon - Republic (1943-present)
- Lesotho - Kingdom (1966-present)
- Libanon – Frans mandaat (1920-1943)
- Liberia - Republic (1847-present)
- Libya - Monarchy (1952-1969)
- Libya - Republic (1970-present)
- Liechtenstein - Principiality (1866-present)
- Liège - Prince-bishopric (till 1795)
- Lithuania - Republic (1918-1940)
- Lithuania - Second Republic (1991-present)
- Livonia - Duchy of Livonia (1561-1772)
- Livonia - Swedish occupation (1621-1710)
- Livonian Confederation (1418–1561)
- Lombardy-Venetia (Kingdom 1815-1866)
- Luxembourg - Grand Duchy (1815-present)
- Luxembourg - under Austrian Authority (1714-1795)
- Macao - Portuguese Colony (1887-1999)
- Macau - Special Administrative Region (1999-present)
- Macedonia - Kingdom (700-168 BC)
- Madagascar - Republic (1960-present)
- Madagaskar - French colony (1890-1960)
- Madeira - Portuguese Colony
- Malacca - British Administration (1824-1942)
- Malawi - Republic (1964-present)
- Malaya - British Colony (1939-1950)
- Malaya and British Borneo - British Colony (1953-1962)
- Malaysia - Constitutional Monarchy (1963-present)
- Maldive Islands - Republic (1968-present)
- Maldives - British protectorate (1796-1965)
- Mali - Republic (1960-present)
- Malta - Republic (1974-present)
- Malta - Republiek - Brits bestuur (1964-1974)
- Man - Dependency of the British Crown (1346-present)
- Marshall Islands - Republic (1979-present)
- Martinique - French Colony (1635-present)
- Mauritania - Republic (1973-present)
- Mauritius - British colony (1810-1968)
- Mauritius - Independently within commonwealth (1968-1992)
- Mauritius - Republic (1992-present)
- Mexico - First Federal Republic (1824–1835)
- Mexico - Central Republic (1835–1846)
- Mexico - First Empire (1821-1823)
- Mexico - Republic (1867-present)
- Mexico - Second Empire (1863-1867)
- Mexico - Second Federal Republic (1846-1863)
- Mexico - Viceroyalty of New Spain (1530-1821)
- Moldavia and Wallachia - Russian occupation (1768-1854)
- Moldova - Republic (1992-present)
- Monaco - House of Grimaldi (1297-1861)
- Monaco - Kingdom (1861-present)
- Mongolia - Peoples republic (1924-1992)
- Mongolia - Republic (1992-present)
- Montenegro - Kingdom (1860-1910)
- Montenegro - Kingdom (1910-1918)
- Montserrat - British Colony (1956-present)
- Morocco - Alaouite dynasty (1666-1912)
- Morocco - French protectorate (1912-1956)
- Morocco - Kingdom (1956-present)
- Morocco - Saadi dynasty (1511-1659)
- Mozambique - Portuguese Colony (1500-1975)
- Mozambique - Republic (1975 - present)
- Muscat and Oman - Sultanate (1888-1970)
- Myanmar - Union of Myanmar (1988-2010)
- Nabataea - Kingdom (168 BC-106)
- Nagorno Karabakh - Republic (1992-present)
- Namibia - Republic (1990-present)
- Nauru - Republic (1968-present)
- Nederland - Kingdom Holland (1806-1810)
- Nepal - Kingdom (1482-2007)
- Nepal - Republic (2007-present)
- Netherlands - Austrian Netherlands (1714-1795)
- Netherlands - Batavian Republic (1795-1806)
- Netherlands - German occupation (1940-1945)
- Netherlands - Kingdom (1814-present)
- Netherlands - Provinces (-1587)
- Netherlands - Republic of the Seven United Netherlands (1588-1795)
- Netherlands - Spanish Netherlands (1556-1715)
- Netherlands - United (south) Dutch States (1790)
- Netherlands Antilles (Curaçao + St. Maarten) - Autonomous territories within the Kingdom of the Netherlands (2010-present)
- Netherlands Antilles - Kingdom of Netherlands (1952-2010)
- Netherlands Indies - Batavian Republic (1798-1806)
- Netherlands Indies - British government (1811-1816)
- Netherlands Indies - Kingdom Holland (1806-1811)
- Netherlands Indies - Kingdom of Netherlands (1816-1945)
- Netherlands Indies - VOC (1602-1798)
- New Caledonia - French Territory (1946-present)
- New Guinea - British Government (1910-1952)
- New Guinea German protectorate (1884-1899, 1914-1919)
- New Hebrides - French-British Condominium (1906-1980(1980))
- New Zealand - British Parliamentary State (1852-present)
- Newfoundland - British Colony (1864-1947)
- Nicaragua - Republic (1838-present)
- Niger - Republiek (1958-heden)
- Nigeria - British Protectorate (1914-1962)
- Nigeria - Republic (1963-present)
- Nightingale Island - British Overseas Territories
- Niue - New Zealand Dependent State (1922-present)
- North Dai Viet - Empire, later Le Dynasty (1676-1789
- North Korea - People's Republiek (1948-present)
- North Macedonia - Republic (1991-present)
- North Vietnam - Communist state (1945-1976)
- Norway - Danish province (1536-1814)
- Norway - Kingdom (1905-present)
- Norway - Union with Sweden - (1814-1905)
- Not applicable
- Oman - Sultanate (1971-present)
- Order of Malta (Sovereign Military Order of Malta)
- Pakistan - Islamic Republic (1948-present)
- Palau - Republic (1981-present)
- Palestine - British Government (1922-1948)
- Panama - Republic (1903-present)
- Papua New Guinea - British Government (1973-present)
- Paraguay - Republic (1813-present)
- Parthian Empire (247 B.C. - 226 A.D.)
- Peru - Republic (1821-present)
- Peru - Spaanse kolonie (1572-1821)
- Perzische Rijk - Achaemeniden (559-330 BC)
- Philippines - Commonwealth (1935-1946)
- Philippines - Republic (1946-present)
- Philippines – Spanish colony (1565-1898)
- Pitcairn Islands - British Colony (1838-present)
- Poland - German Occupation WWII (1939-1945)
- Poland - German-Austrian Occupation (1917-1918)
- Poland - People's Republic (1944-1989 (1990))
- Poland - Polish-Lithuanian Commonwealth (1569-1795)
- Poland - Republic (1918-1939)
- Poland - Republic (1990-present)
- Poland - Russia-Prussia-Austrian (1815-1917)
- Poland- Grand Duchy of Warsaw (1795-1815)
- Polen - Polish-Lithuanian union (1386-1569)
- Portugal - Kingdom (1139-1910)
- Portugal - Republic (1911-present)
- Ptolemaic in Egypt 305-30 BC
- Puerto Rico - Spanish colony (1493-1898)
- Qatar - Republic (1971-present)
- Qatar and Dubai - British Protectorate (1966-1971)
- Ragusa - Republic (1358-1808)
- Ragusa - Republic Ragusa (1358-1808)
- Ras al Khaimah - Emirate (1969-1970)
- Republic of China - Republic (1949-present)
- Réunion - French Colony (1848-1946)
- Réunion - French Overseas Department (1946-present)
- Réunion - Île Bourbon (1664-1848)
- Reval - Swedish occupation (1648-1651)
- Rhodesia - British Protectorate (1965-1979)
- Rhodesia and Nyasaland - Federation (1953-1964)
- Rhodesië (south) - self rulr (1964-1965)