663 selected
- Not filled in
- Riga - Free City (1561-1581)
- Roman Empire - Antoninus Pius to Commodus (138-192)
- Roman Empire - Augustus to Vitellius (31 B.C.-69)
- Roman Empire - Aurelianus (270-275)
- Roman Empire - Constantine and Licinius (313-337)
- Roman Empire - Family of Constantine the Great (337-364)
- Roman Empire - Gordian III to Uranius Antoninus (238-253)
- Roman Empire - Macrinus to Pupienus (217-238)
- Roman Empire - Nerva to Hadrian (96-138)
- Roman Empire - Pertinax to Geta (192-217)
- Roman Empire - Probus to Amandus (276-293)
- Roman Empire - The Divided Empire to the Decline of the Western Roman Empire (395-491)
- Roman Empire - The Tetrarchy from the Monetary Reformation of Diocletian (294-313)
- Roman Empire - Troas as Roman Colony in the Provence Asia (20 B.C.-284 A.D.)
- Roman Empire - Valentinian I to Theodosius I (364-395)
- Roman Empire - Valerian to Florianus (253-276)
- Roman Empire - Vespasian to Domitian (69-96)
- Roman Republic (509-27 BC)
- Romania - Kingdom (1862-1881)
- Romania - Kingdom (1881-1947)
- Romania - People's Republic (1948-1963)
- Romania - Republic (1990-present)
- Romania - Socialistic Republic (1966-1983)
- Ruanda-Urundi - Franc (1887-1967)
- Rusland - Moskovische periode (1450-1700)
- Russia - Empire (1700-1917)
- Russia - Russian Federation (1991-heden)
- Russia - Sovjet Union (1917-1991)
- Rwanda - Republic (1962-heden)
- Rwanda and Burundi - Provinces (1960-1964)
- Saarland - German Republic State (1947-1957)
- Sahrawi Arab Democratic Republic (SADR) (1990 - present)
- Saint Helena - British Colony (1834-1981)
- Saint Helena and Ascension - British Overseas territory (1981-heden)
- Saint Lucia - British Associated State (1967-1979)
- Saint Lucia - Constitutional Monarchy (1979-present)
- Saint Pierre and Miquelon - French Territory (1814-1958)
- Saint Vincent - British Associated State (1969-1979)
- Saint Vincent - Constitutional Monarchy (1979-present)
- Saint-Kitts & Nevis - Brits Rijk – autonoom gebied (1967-1983)
- Saint-Kitts & Nevis - monarchie (1983-heden)
- Samoa - Republic (1962-heden)
- San Marino - Republic (301-present)
- São Tomé and Príncipe - Democratic Republic (1975-heden)
- Sao Tomé en Principe - Portugese colony (1493-1975)
- Sarawak - British Protectorate (1841-1946)
- Sasanian Empire 224-651
- Saudi Arabia - Kingdom (1932-heden)
- Scotland - Kingdom (1058-1707)
- Senegal - Republic (1960-present)
- Serbia - German Occupation
- Serbia - Kingdom (1878-1918)
- Serbia - Republic (2006-heden)
- Serbia - State Union of Serbia and Montenegro (2003-2006)
- Seychelles - British Colony (1903-1976)
- Seychelles - Republic (1976-heden)
- Sharjah - Emirate (1727-1971)
- Sierra Leone - Republic (1961-heden)
- Silesia - part of kingdom Bohemia (1335-1918)
- Singapore - Republic (1965-heden)
- Slovakia - Republic (1939-1945)
- Slovakia - Republic (1993-present)
- Slovenia - Republic (1991-present)
- Solomon Islands - Commonwealth Nation (1976-heden)
- Somali - Democratic Republic (1969-1991)
- Somali - Transitional Federal Government (2004-2012)
- Somali - Transitional National Government (2000-2004)
- Somalia - Federal Government (2012-today)
- Somalia - Republic (1960-1969)
- Somalië - Civil war (1991-2000)
- Somalië - United Nations Trust Territory (1949-1960)
- Somaliland - Republic (1991-present)
- South Africa - Republic (1961-present)
- South Africa - South African Republic (1857-1902)
- South Africa - Union (1910-1961)
- South Arabia
- South Georgia and the South Sandwich Islands - British Territory (1775-present)
- South Korea - Republic (1948-present)
- South Sudan - Federal Presidential Democratic Republic (2011-present)
- South Vietnam - Democratic State (1949-1975)
- Southern Rhodesia - British Colony (1923-1953)
- Sovereign Military Order of Malta (Order of Malta)
- Spain - Civil War (1936-1939)
- Spain - Francoist Spain (1939-1975)
- Spain - Kingdom (1504-1931)
- Spain - Kingdom (1975-present)
- Spain - Provisional Government (1868-1871)
- Spain - Second Republic (1931-1939)
- Spain - Spanish-Arab Period (711-1492)
- Spitzbergen - Norwegian Territory (1920-heden)
- Sri Lanka - Democratic Socialist Republic (1972-present)
- Stoltenhoff Island - british sea area
- Straits Settlements - British Colony (1867-1939)
- Straits Settlements - British India government (1858-1867)
- Straits Settlements - East India Company (1826-1858)
- Sudan - Republic (1956-present)
- Suriname - Colonie of the Netherlands (1492-1954)
- Suriname - Constituent country of the Netherlands (1954-1975)
- Suriname - Republic (1975-present)
- Swaziland - Kingdom (1968-present)
- Sweden - Kingdom (1523-present)
- Switzerland - Cantons (tot 1848)
- Switzerland - Confederation (1848-present)
- Syria - French mandate (1920-1946)
- Syria - Syrian Arab Republic (1962-present)
- Syria - United Arab Republic (1958–1961)
- Syrië - Republiek (1946-1958)
- Tajikistan - Republic (1991-present)
- Tanzania - Republic (1964-present)
- Tatarstan - Commonwealth of Independent States (1990-present)
- Terceira - Maria II in exile (1828-1833)
- Thailand - Kingdom (1939-present)
- Thailand - Kingdom Siam (1782-1939)
- Tibet
- Tibet - Ga-den
- Timor - Portuguese Colony (1702–1975)
- Togo - French Colony (1916-1960)
- Togo - Republic (1960-present)
- Tokelau - New Zealand Territory (1948-present)
- Tonga - Kingdom (1845-present)
- Tonkin - French Protectorate (1884-1945)
- Tranquebar - Danish colony (1620-1845)
- Transnistria - Moldavian Republic (1990-present)
- Trinidad and Tobago - British Colony (1888-1976)
- Trinidad and Tobago - Republic (1976-present)
- Tristan da Cunha - St. Helena Dependency (1938-present)
- Tunesia - French protectorate (1881-1956)
- Tunisia - Ottoman Empire (1600-1881)
- Tunisia - Republic (1957-present)
- Turkey - Ottoman Empire (1299-1922)
- Turkey - Republic (1923-present)
- Turkmenistan - Republic (1991-present)
- Turks and Caicos Islands - British Colony (1962-present)
- Tuvalu - Parliamentary monarchy within the Commonwealth (1978-present)
- Uganda - Republic (1962-present)
- Ukraine - Republic (1991-present)
- United Arab Emirates - United Emirates (1971-present)
- United Kingdom - Kingdom (1707-present)
- United States - Colonial Era (until 1789)
- United States of America - Republic (1789-present)
- Uruguay - Republic (1830-present)
- Uzbekistan - Republic (1991-present)
- Vanuatu - Republic (1980-present)
- Vatican City - Independent state (1929-present)
- Venezuela - Republic (1823-present)
- Viet Nam - Socialist Republic (1976-present)
- Visigothic Kingdom - Kingdom (418-720)
- Wenden - Terra Mariana (1207-1561)
- West African States - Federation (1958-present)
- Yemen - Arab Republic (1962-1990)
- Yemen - Democratic Republic (1967-1990)
- Yemen - Mutawakkilitic Kingdom (1918-1962)
- Yemen - Republic (1990-present)
- Yugoslavia - Federal People's Republic (1943-1945)
- Yugoslavia - Federal People's Republic (1946-1963)
- Yugoslavia - Federal Republic Yugoslavia (1992-2003)
- Yugoslavia - Kingdom (1929-1941)
- Yugoslavia - Kingdom of the Serbs, Croats and Slovenes (1918-1929)
- Yugoslavia - Socialistische Federale Republiek (1963-1992)
- Zambia - Republic (1964-present)
- Zanzibar - Sultanate of Oman (1840-1890)
- Zimbabwe - Republic (1980-present)
- Zwitserland - Helvetic Republic (1798-1803)