Year
The world in 1921
In 1921 the atlas holds 412 states standing across 6 regions. 66 things began that year - Georgian Soviet Socialist Republic, Kronstadt rebellion and Bloody Mary among them - and 22 ended; 85 people were born and 62 died.
Only what Wikidata dates to the year is counted here; a thing dated to its decade is on the 1920s page, and to its century on the 20th century.
What began in 1921
By kind, the best known first; a war or a state is listed in the year it began.
States 13
- Georgian Soviet Socialist Republic · state · 1921 – 1991
- Tuvan People's Republic · state · 1921 – 1944
- Republic of the Rif · state · 1921 – 1926
- Kingdom of Iraq · state · 1921 – 1958
- Nakhichevan Autonomous Soviet Socialist Republic · state · 1921 – 1990
- Southern Ireland · state · 1921 – 1922
- Republic of Mountainous Armenia · state · 1921
- Jabal Druze State · state · 1921 – 1936
- Serbian–Hungarian Baranya–Baja Republic · state · 1921
- Lajtabánság · state · 1921
and 3 more in the atlas.
Wars and battles 13
- Soviet invasion of Georgia · war · 1921
- Battle of Annual · battle · 1921
- Battle of the Sakarya · battle · 1921
- 1921 Yakut revolt · battle · 1921 – 1923
- Battle of Blair Mountain · battle · 1921
- Koçgiri rebellion · battle · 1921
- Second Battle of İnönü · battle · 1921
- Soviet intervention in Mongolia · battle · 1921
- First Battle of İnönü · battle · 1921
- Battle of Kütahya–Eskişehir · battle · 1921
and 3 more in the atlas.
Regime change 1
- 1921 Persian coup d'état · adverse regime change · 1921
Unrest and atrocity 17
- Kronstadt rebellion · unrest · 1921
- Tulsa race massacre · atrocity · 1921
- Kurdish–Turkish conflict · unrest · 1921
- Jaffa riots · unrest · 1921
- Mongolian Revolution of 1921 · unrest · 1921
- Charles IV of Hungary's attempts to retake the throne · unrest · 1921
- Malabar rebellion · unrest · 1921
- East Karelian uprising · unrest · 1921 – 1922
- Assassination of Talaat Pasha · atrocity · 1921
- February Uprising · unrest · 1921
and 7 more in the atlas.
Famine and plague 2
- Russian famine of 1921–1922 · famine · 1921 – 1922
- 1921–1922 famine in Tatarstan · famine · 1921 – 1922
Treaties 12
- Anglo-Irish Treaty · treaty · 1921
- Treaty of Riga · treaty · 1921
- Washington Naval Treaty · treaty · 1921 – 1922
- Treaty of Moscow · treaty · 1921
- Treaty of Ankara · treaty · 1921
- U.S.–German Peace Treaty · treaty · 1921
- U.S.–Austrian Peace Treaty · treaty · 1921
- Åland convention · treaty · 1921
- International Convention for the Suppression of the Traffic in Women and Children · treaty · 1921
- Four-Power Treaty · treaty · 1921
and 2 more in the atlas.
Works and ideas 8
- Bloody Mary · discovery · 1921
- Glutathione · discovery · 1921
- 962 Aslög · discovery · 1921
- 950 Ahrensa · discovery · 1921
- 961 Gunnie · discovery · 1921
- 957 Camelia · discovery · 1921
- 958 Asplinda · discovery · 1921
- 980 Anacostia · discovery · 1921
What ended in 1921
States that fell or were replaced, and wars and other things that ran past the year they began.
States 11
- Ukrainian People's Republic · state · 1917 – 1921
- Democratic Republic of Georgia · state · 1918 – 1921
- Republics of the Soviet Union · state · 1920 – 1921
- Makhnovshchina · state · 1918 – 1921
- Emirate of Jabal Shammar · state · 1836 – 1921
- Republic of Mountainous Armenia · state · 1921
- Rashidi dynasty · state · 1834 – 1921
- Emirate of Nejd and Hasa · state · 1902 – 1921
- Serbian–Hungarian Baranya–Baja Republic · state · 1921
- Lajtabánság · state · 1921
and 1 more in the atlas.
Wars and battles 8
- Polish–Soviet War · war · 1919 – 1921
- Irish War of Independence · war · 1919 – 1921
- Ukrainian War of Independence · war · 1917 – 1921
- Ukrainian–Soviet War · war · 1917 – 1921
- Franco-Turkish War · war · 1918 – 1921
- Yalova Peninsula massacres · war · 1920 – 1921
- Zaian War · war · 1914 – 1921
- Siege of Aintab · battle · 1920 – 1921
Unrest and atrocity 3
- Tambov Rebellion · unrest · 1920 – 1921
- Silesian Uprisings · unrest · 1919 – 1921
- Alawite revolt of 1919 · unrest · 1919 – 1921
Born and died
By how many Wikipedias write about them.
Born in 1921 85
- Satyajit Ray · composer · 1921 – 1992
- Prince Philip, Duke of Edinburgh · military officer · 1921 – 2021
- Suharto · politician · 1921 – 2008
- Andrei Sakharov · physicist · 1921 – 1989
- Stanisław Lem · physician · 1921 – 2006
- Alexander Dubček · politician · 1921 – 1992
- Rosalyn Sussman Yalow · physicist · 1921 – 2011
- Friedrich Dürrenmatt · painter · 1921 – 1990
- John Rawls · philosopher · 1921 – 2002
- John Glenn · politician · 1921 – 2016
- Jean-Bédel Bokassa · politician · 1921 – 1996
- Fahd of Saudi Arabia · monarch · 1921 – 2005
- Hua Guofeng · politician · 1921 – 2008
- Michael I of Romania · monarch · 1921 – 2017
- P. V. Narasimha Rao · politician · 1921 – 2004
- Seretse Khama · politician · 1921 – 1980
and 69 more in the atlas.
Died in 1921 62
- Peter Kropotkin · explorer · 1842 – 1921
- Alexander Blok · philosopher · 1880 – 1921
- Gabriel Lippmann · inventor · 1845 – 1921
- Camille Saint-Saëns · composer · 1835 – 1921
- Ivan Vazov · politician · 1850 – 1921
- Theobald von Bethmann Hollweg · politician · 1856 – 1921
- Vladimir Korolenko · writer · 1853 – 1921
- Talaat Pasha · politician · 1874 – 1921
- Peter I of Serbia · military officer · 1844 – 1921
- Nicholas I of Montenegro · monarch · 1841 – 1921
- Roman von Ungern-Sternberg · politician · 1886 – 1921
- Hara Takashi · politician · 1856 – 1921
- Ludwig III of Bavaria · military personnel · 1845 – 1921
- Isabel, Princess Imperial of Brazil · person · 1846 – 1921
- Gabriela Zapolska · writer · 1857 – 1921
- Mykola Leontovych · composer · 1877 – 1921
and 46 more in the atlas.
Standing in 1921
The states the atlas holds as standing that year, by region, the best known first, with who held the highest office where the record dates it.
Europe76 states
- France · 481 – present · Alexandre Millerand, President of the French Republic since 1920
- Finland · 1917 – present · Kaarlo Juho Ståhlberg, President of Finland since 1919
- Spain · 1516 – present · Alfonso XIII, Monarch of Spain since 1886
- Norway · 1905 – present · Haakon VII, Monarch of Norway since 1905
- Switzerland · 1848 – present · Edmund Schulthess, Member of the Swiss Federal Council since 1912 and Ernest Chuard, Member of the Swiss Federal Council since 1919
- Belgium · 1830 – present · Albert I of Belgium, King of the Belgians since 1909
- Austria · 1918 – present · Michael Hainisch, President of Austria since 1920
- Portugal · 1910 – present · António José de Almeida, President of Portugal since 1919
- Sweden · 900 – present · Gustaf V, Monarch of Sweden since 1907
- Denmark · 800 – present · Christian X, Monarch of Denmark since 1912
and 66 more; every state of Europe.
Middle East and North Africa60 states
- Syria · 1920 – present
- Morocco · 1549 – present
- Qatar · 1870 – present · Abdullah bin Jassim Al Thani, Emir of the State of Qatar since 1914
- Ottoman Empire · 1302 – 1922 · Mehmed VI, sultan of the Ottoman Empire since 1918
- Azerbaijan Soviet Socialist Republic · 1920 – 1991 · Sergei Kirov, First Secretary of the Central Committee of the Communist Party of Azerbaijan since 1921
- Armenian Soviet Socialist Republic · 1920 – 1991 · Gevorg Alikhanyan, First Secretary of the Armenian Communist Party since 1920
- Persian Empire · 550 BCE – 1979 CE
- Georgian Soviet Socialist Republic · 1921 – 1991 · Mamia Orakhelashvili, First Secretary since 1921
- Ethiopian Empire · 1270 – 1975 · Zewditu I of Ethiopia, Emperor of Ethiopia since 1916
- Qajar dynasty · 1785 – 1925 · Ahmad Shah Qajar, shah since 1909
and 50 more; every state of Middle East and North Africa.
Sub-Saharan Africa25 states
- Liberia · 1822 – present · Charles D. B. King, President of Liberia since 1920
- Belgian Congo · 1908 – 1960 · Albert I of Belgium, King since 1909
- Katanga Province · 1910 – 2015
- Union of South Africa · 1910 – 1961
- Gold Coast · 1821 – 1957 · George V, Monarch since 1910
- South West Africa · 1915 – 1990
- British Somaliland · 1884 – 1960
- Buganda · 1420 – 1966 · Daudi Cwa II of Buganda, Kabaka of Buganda since 1897
- Cape Province · 1910 – 1994
- Italian Somaliland · 1880 – 1936 · Victor Emmanuel III, King since 1900
and 15 more; every state of Sub-Saharan Africa.
South Asia156 states
- British Raj · 1858 – 1947 · George V, Emperor of India since 1910
- Kingdom of Mysore · 1399 – 1950 · Krishna Raja Wadiyar IV, Maharaja of Mysore since 1894
- Hyderabad State · 1724 – 1948 · Asaf Jah VII of Hyderabad, 1st Nizam of Hyderabad since 1911
- Turkestan Autonomous Soviet Socialist Republic · 1918 – 1924
- Bukharan People's Soviet Republic · 1920 – 1924
- Emirate of Afghanistan · 1823 – 1926 · Amanullah Khan, Emir of Afghanistan since 1919
- French India · 1668 – 1954
- Tibet · 1912 – 1959 · 13th Dalai Lama, Head of State of Tibet since 1912
- Travancore · 1729 – 1949
- Kingdom of Nepal · 1768 – 2008 · Tribhuvan of Nepal, King of Nepal since 1911
and 146 more; every state of South Asia.
East and Southeast Asia52 states
- Mongolia · 1911 – present
- Taiwan · 1912 – present · Xu Shichang, President of the Republic of China since 1918
- Brunei · 1368 – present · Muhammad Jamalul Alam II, Sultan of Brunei Darussalam since 1906
- Russian Soviet Federative Socialist Republic · 1917 – 1991
- Empire of Japan · 1868 – 1947 · Emperor Taishō, Emperor of Japan since 1912
- Kuomintang · 1918 – 1929
- Dutch East Indies · 1800 – 1949 · Dirk Fock, head of state since 1921
- French Indochina · 1887 – 1954
- Republic of China · 1912 – 1971
- Tuvan People's Republic · 1921 – 1944
and 42 more; every state of East and Southeast Asia.
Americas and Oceania36 states
- United States · 1776 – present · Woodrow Wilson, President of the United States since 1913 and Warren G. Harding, President of the United States since 1921
- Mexico · 1821 – present · Álvaro Obregón, President of Mexico since 1920
- Australia · 1901 – present
- Canada · 1867 – present · George V, monarch of Canada since 1910
- Brazil · 1889 – present · Epitácio Pessoa, President of Brazil since 1919
- Chile · 1810 – present · Arturo Alessandri, President of Chile since 1920
- Argentina · 1861 – present · Hipólito Yrigoyen, President of Argentina since 1916
- Colombia · 1810 – present · Marco Fidel Suárez, President of Colombia since 1918 and Jorge Holguín, president since 1921
- New Zealand · 1841 – present
- Peru · 1822 – present · Augusto B. Leguía, President of Peru since 1919
and 26 more; every state of Americas and Oceania.
Location unknown7 states
- Unfederated Malay States · 1826 – 1946
- Kingdom of Sine · 1350 – 1969
- Lajtabánság · 1921
- Gaekwad dynasty · 1721 – 1947
- South Serbia · 1919 – 1922
- Kingdom of Orungu · 1700 – 1927
- Wahidi · 1800 – 1963
Open in the atlas
- On the timeline, 1896 – 1946: every state, war and life of 1921 and the years either side, region by region.
- On the map in 1921: the borders of the year, its cities under their names of the year, and what happened where.
Wikidata (CC0) · data built 2026-10-07 · Pastlas v2.13.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.